X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/cdee36bbede04ba9477c25a6ba0c71b10d8529c0..9101705656a1967ecdfa62cf8f5777f5d190f361:/vendor/assets/iD/iD.js

diff --git a/vendor/assets/iD/iD.js b/vendor/assets/iD/iD.js
index e391c7aa2..1e6667a38 100644
--- a/vendor/assets/iD/iD.js
+++ b/vendor/assets/iD/iD.js
@@ -21,6 +21,10 @@
     return to;
   };
   var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
+    // If the importer is in node compatibility mode or this is not an ESM
+    // file that has been converted to a CommonJS file using a Babel-
+    // compatible transform (i.e. "__esModule" has not been set), then set
+    // "default" to the CommonJS "module.exports" for node compatibility.
     isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
     mod
   ));
@@ -457,6 +461,7 @@
         [69216, 69247],
         [126064, 126143],
         [126464, 126719]
+        // Mathematical Alphabetic symbols https://www.unicode.org/charts/PDF/U1EE00.pdf
       ];
       function isArabic(char) {
         if (char.length > 1) {
@@ -3313,6 +3318,7 @@
           }
           this._adjustParentBBoxes(bbox2, insertPath, level);
         },
+        // split overflowed node into two
         _split: function(insertPath, level) {
           var node = insertPath[level], M = node.children.length, m = this._minEntries;
           this._chooseSplitAxis(node, m, M);
@@ -3354,11 +3360,13 @@
           }
           return index;
         },
+        // sorts node children by the best axis for split
         _chooseSplitAxis: function(node, m, M) {
           var compareMinX = node.leaf ? this.compareMinX : compareNodeMinX, compareMinY = node.leaf ? this.compareMinY : compareNodeMinY, xMargin = this._allDistMargin(node, m, M, compareMinX), yMargin = this._allDistMargin(node, m, M, compareMinY);
           if (xMargin < yMargin)
             node.children.sort(compareMinX);
         },
+        // total margin of all possible split distributions where each node is at least m full
         _allDistMargin: function(node, m, M, compare) {
           node.children.sort(compare);
           var toBBox = this.toBBox, leftBBox = distBBox(node, 0, m, toBBox), rightBBox = distBBox(node, M - m, M, toBBox), margin = bboxMargin(leftBBox) + bboxMargin(rightBBox), i2, child;
@@ -3551,7 +3559,19 @@
         return result;
       }
       function intersect2(a, b, edge, bbox2) {
-        return edge & 8 ? [a[0] + (b[0] - a[0]) * (bbox2[3] - a[1]) / (b[1] - a[1]), bbox2[3]] : edge & 4 ? [a[0] + (b[0] - a[0]) * (bbox2[1] - a[1]) / (b[1] - a[1]), bbox2[1]] : edge & 2 ? [bbox2[2], a[1] + (b[1] - a[1]) * (bbox2[2] - a[0]) / (b[0] - a[0])] : edge & 1 ? [bbox2[0], a[1] + (b[1] - a[1]) * (bbox2[0] - a[0]) / (b[0] - a[0])] : null;
+        return edge & 8 ? [a[0] + (b[0] - a[0]) * (bbox2[3] - a[1]) / (b[1] - a[1]), bbox2[3]] : (
+          // top
+          edge & 4 ? [a[0] + (b[0] - a[0]) * (bbox2[1] - a[1]) / (b[1] - a[1]), bbox2[1]] : (
+            // bottom
+            edge & 2 ? [bbox2[2], a[1] + (b[1] - a[1]) * (bbox2[2] - a[0]) / (b[0] - a[0])] : (
+              // right
+              edge & 1 ? [bbox2[0], a[1] + (b[1] - a[1]) * (bbox2[0] - a[0]) / (b[0] - a[0])] : (
+                // left
+                null
+              )
+            )
+          )
+        );
       }
       function bitCode2(p, bbox2) {
         var code = 0;
@@ -3975,16 +3995,19 @@
             _defineProperties(Constructor, staticProps);
           return Constructor;
         }
-        var Node = function() {
-          function Node2(key, data) {
-            this.next = null;
-            this.key = key;
-            this.data = data;
-            this.left = null;
-            this.right = null;
-          }
-          return Node2;
-        }();
+        var Node = (
+          /** @class */
+          function() {
+            function Node2(key, data) {
+              this.next = null;
+              this.key = key;
+              this.data = data;
+              this.left = null;
+              this.right = null;
+            }
+            return Node2;
+          }()
+        );
         function DEFAULT_COMPARE(a, b) {
           return a > b ? 1 : a < b ? -1 : 0;
         }
@@ -4093,350 +4116,353 @@
               printRow(root3.right, indent2, true, out, printNode);
           }
         }
-        var Tree = function() {
-          function Tree2(comparator) {
-            if (comparator === void 0) {
-              comparator = DEFAULT_COMPARE;
-            }
-            this._root = null;
-            this._size = 0;
-            this._comparator = comparator;
-          }
-          Tree2.prototype.insert = function(key, data) {
-            this._size++;
-            return this._root = insert(key, data, this._root, this._comparator);
-          };
-          Tree2.prototype.add = function(key, data) {
-            var node = new Node(key, data);
-            if (this._root === null) {
-              node.left = node.right = null;
-              this._size++;
-              this._root = node;
-            }
-            var comparator = this._comparator;
-            var t = splay(key, this._root, comparator);
-            var cmp2 = comparator(key, t.key);
-            if (cmp2 === 0)
-              this._root = t;
-            else {
-              if (cmp2 < 0) {
-                node.left = t.left;
-                node.right = t;
-                t.left = null;
-              } else if (cmp2 > 0) {
-                node.right = t.right;
-                node.left = t;
-                t.right = null;
-              }
-              this._size++;
-              this._root = node;
-            }
-            return this._root;
-          };
-          Tree2.prototype.remove = function(key) {
-            this._root = this._remove(key, this._root, this._comparator);
-          };
-          Tree2.prototype._remove = function(i2, t, comparator) {
-            var x;
-            if (t === null)
-              return null;
-            t = splay(i2, t, comparator);
-            var cmp2 = comparator(i2, t.key);
-            if (cmp2 === 0) {
-              if (t.left === null) {
-                x = t.right;
-              } else {
-                x = splay(i2, t.left, comparator);
-                x.right = t.right;
+        var Tree = (
+          /** @class */
+          function() {
+            function Tree2(comparator) {
+              if (comparator === void 0) {
+                comparator = DEFAULT_COMPARE;
               }
-              this._size--;
-              return x;
+              this._root = null;
+              this._size = 0;
+              this._comparator = comparator;
             }
-            return t;
-          };
-          Tree2.prototype.pop = function() {
-            var node = this._root;
-            if (node) {
-              while (node.left) {
-                node = node.left;
+            Tree2.prototype.insert = function(key, data) {
+              this._size++;
+              return this._root = insert(key, data, this._root, this._comparator);
+            };
+            Tree2.prototype.add = function(key, data) {
+              var node = new Node(key, data);
+              if (this._root === null) {
+                node.left = node.right = null;
+                this._size++;
+                this._root = node;
               }
-              this._root = splay(node.key, this._root, this._comparator);
-              this._root = this._remove(node.key, this._root, this._comparator);
-              return {
-                key: node.key,
-                data: node.data
-              };
-            }
-            return null;
-          };
-          Tree2.prototype.findStatic = function(key) {
-            var current = this._root;
-            var compare = this._comparator;
-            while (current) {
-              var cmp2 = compare(key, current.key);
+              var comparator = this._comparator;
+              var t = splay(key, this._root, comparator);
+              var cmp2 = comparator(key, t.key);
               if (cmp2 === 0)
-                return current;
-              else if (cmp2 < 0)
-                current = current.left;
-              else
-                current = current.right;
-            }
-            return null;
-          };
-          Tree2.prototype.find = function(key) {
-            if (this._root) {
-              this._root = splay(key, this._root, this._comparator);
-              if (this._comparator(key, this._root.key) !== 0)
+                this._root = t;
+              else {
+                if (cmp2 < 0) {
+                  node.left = t.left;
+                  node.right = t;
+                  t.left = null;
+                } else if (cmp2 > 0) {
+                  node.right = t.right;
+                  node.left = t;
+                  t.right = null;
+                }
+                this._size++;
+                this._root = node;
+              }
+              return this._root;
+            };
+            Tree2.prototype.remove = function(key) {
+              this._root = this._remove(key, this._root, this._comparator);
+            };
+            Tree2.prototype._remove = function(i2, t, comparator) {
+              var x;
+              if (t === null)
                 return null;
-            }
-            return this._root;
-          };
-          Tree2.prototype.contains = function(key) {
-            var current = this._root;
-            var compare = this._comparator;
-            while (current) {
-              var cmp2 = compare(key, current.key);
-              if (cmp2 === 0)
-                return true;
-              else if (cmp2 < 0)
-                current = current.left;
-              else
-                current = current.right;
-            }
-            return false;
-          };
-          Tree2.prototype.forEach = function(visitor, ctx) {
-            var current = this._root;
-            var Q = [];
-            var done = false;
-            while (!done) {
-              if (current !== null) {
-                Q.push(current);
-                current = current.left;
-              } else {
-                if (Q.length !== 0) {
-                  current = Q.pop();
-                  visitor.call(ctx, current);
-                  current = current.right;
-                } else
-                  done = true;
+              t = splay(i2, t, comparator);
+              var cmp2 = comparator(i2, t.key);
+              if (cmp2 === 0) {
+                if (t.left === null) {
+                  x = t.right;
+                } else {
+                  x = splay(i2, t.left, comparator);
+                  x.right = t.right;
+                }
+                this._size--;
+                return x;
               }
-            }
-            return this;
-          };
-          Tree2.prototype.range = function(low, high, fn, ctx) {
-            var Q = [];
-            var compare = this._comparator;
-            var node = this._root;
-            var cmp2;
-            while (Q.length !== 0 || node) {
+              return t;
+            };
+            Tree2.prototype.pop = function() {
+              var node = this._root;
               if (node) {
-                Q.push(node);
-                node = node.left;
-              } else {
-                node = Q.pop();
-                cmp2 = compare(node.key, high);
-                if (cmp2 > 0) {
-                  break;
-                } else if (compare(node.key, low) >= 0) {
-                  if (fn.call(ctx, node))
-                    return this;
+                while (node.left) {
+                  node = node.left;
                 }
-                node = node.right;
+                this._root = splay(node.key, this._root, this._comparator);
+                this._root = this._remove(node.key, this._root, this._comparator);
+                return {
+                  key: node.key,
+                  data: node.data
+                };
               }
-            }
-            return this;
-          };
-          Tree2.prototype.keys = function() {
-            var keys = [];
-            this.forEach(function(_a) {
-              var key = _a.key;
-              return keys.push(key);
-            });
-            return keys;
-          };
-          Tree2.prototype.values = function() {
-            var values = [];
-            this.forEach(function(_a) {
-              var data = _a.data;
-              return values.push(data);
-            });
-            return values;
-          };
-          Tree2.prototype.min = function() {
-            if (this._root)
-              return this.minNode(this._root).key;
-            return null;
-          };
-          Tree2.prototype.max = function() {
-            if (this._root)
-              return this.maxNode(this._root).key;
-            return null;
-          };
-          Tree2.prototype.minNode = function(t) {
-            if (t === void 0) {
-              t = this._root;
-            }
-            if (t)
-              while (t.left) {
-                t = t.left;
+              return null;
+            };
+            Tree2.prototype.findStatic = function(key) {
+              var current = this._root;
+              var compare = this._comparator;
+              while (current) {
+                var cmp2 = compare(key, current.key);
+                if (cmp2 === 0)
+                  return current;
+                else if (cmp2 < 0)
+                  current = current.left;
+                else
+                  current = current.right;
               }
-            return t;
-          };
-          Tree2.prototype.maxNode = function(t) {
-            if (t === void 0) {
-              t = this._root;
-            }
-            if (t)
-              while (t.right) {
-                t = t.right;
+              return null;
+            };
+            Tree2.prototype.find = function(key) {
+              if (this._root) {
+                this._root = splay(key, this._root, this._comparator);
+                if (this._comparator(key, this._root.key) !== 0)
+                  return null;
               }
-            return t;
-          };
-          Tree2.prototype.at = function(index2) {
-            var current = this._root;
-            var done = false;
-            var i2 = 0;
-            var Q = [];
-            while (!done) {
-              if (current) {
-                Q.push(current);
-                current = current.left;
-              } else {
-                if (Q.length > 0) {
-                  current = Q.pop();
-                  if (i2 === index2)
-                    return current;
-                  i2++;
+              return this._root;
+            };
+            Tree2.prototype.contains = function(key) {
+              var current = this._root;
+              var compare = this._comparator;
+              while (current) {
+                var cmp2 = compare(key, current.key);
+                if (cmp2 === 0)
+                  return true;
+                else if (cmp2 < 0)
+                  current = current.left;
+                else
                   current = current.right;
-                } else
-                  done = true;
               }
-            }
-            return null;
-          };
-          Tree2.prototype.next = function(d) {
-            var root3 = this._root;
-            var successor = null;
-            if (d.right) {
-              successor = d.right;
-              while (successor.left) {
-                successor = successor.left;
+              return false;
+            };
+            Tree2.prototype.forEach = function(visitor, ctx) {
+              var current = this._root;
+              var Q = [];
+              var done = false;
+              while (!done) {
+                if (current !== null) {
+                  Q.push(current);
+                  current = current.left;
+                } else {
+                  if (Q.length !== 0) {
+                    current = Q.pop();
+                    visitor.call(ctx, current);
+                    current = current.right;
+                  } else
+                    done = true;
+                }
+              }
+              return this;
+            };
+            Tree2.prototype.range = function(low, high, fn, ctx) {
+              var Q = [];
+              var compare = this._comparator;
+              var node = this._root;
+              var cmp2;
+              while (Q.length !== 0 || node) {
+                if (node) {
+                  Q.push(node);
+                  node = node.left;
+                } else {
+                  node = Q.pop();
+                  cmp2 = compare(node.key, high);
+                  if (cmp2 > 0) {
+                    break;
+                  } else if (compare(node.key, low) >= 0) {
+                    if (fn.call(ctx, node))
+                      return this;
+                  }
+                  node = node.right;
+                }
+              }
+              return this;
+            };
+            Tree2.prototype.keys = function() {
+              var keys = [];
+              this.forEach(function(_a) {
+                var key = _a.key;
+                return keys.push(key);
+              });
+              return keys;
+            };
+            Tree2.prototype.values = function() {
+              var values = [];
+              this.forEach(function(_a) {
+                var data = _a.data;
+                return values.push(data);
+              });
+              return values;
+            };
+            Tree2.prototype.min = function() {
+              if (this._root)
+                return this.minNode(this._root).key;
+              return null;
+            };
+            Tree2.prototype.max = function() {
+              if (this._root)
+                return this.maxNode(this._root).key;
+              return null;
+            };
+            Tree2.prototype.minNode = function(t) {
+              if (t === void 0) {
+                t = this._root;
+              }
+              if (t)
+                while (t.left) {
+                  t = t.left;
+                }
+              return t;
+            };
+            Tree2.prototype.maxNode = function(t) {
+              if (t === void 0) {
+                t = this._root;
+              }
+              if (t)
+                while (t.right) {
+                  t = t.right;
+                }
+              return t;
+            };
+            Tree2.prototype.at = function(index2) {
+              var current = this._root;
+              var done = false;
+              var i2 = 0;
+              var Q = [];
+              while (!done) {
+                if (current) {
+                  Q.push(current);
+                  current = current.left;
+                } else {
+                  if (Q.length > 0) {
+                    current = Q.pop();
+                    if (i2 === index2)
+                      return current;
+                    i2++;
+                    current = current.right;
+                  } else
+                    done = true;
+                }
+              }
+              return null;
+            };
+            Tree2.prototype.next = function(d) {
+              var root3 = this._root;
+              var successor = null;
+              if (d.right) {
+                successor = d.right;
+                while (successor.left) {
+                  successor = successor.left;
+                }
+                return successor;
+              }
+              var comparator = this._comparator;
+              while (root3) {
+                var cmp2 = comparator(d.key, root3.key);
+                if (cmp2 === 0)
+                  break;
+                else if (cmp2 < 0) {
+                  successor = root3;
+                  root3 = root3.left;
+                } else
+                  root3 = root3.right;
               }
               return successor;
-            }
-            var comparator = this._comparator;
-            while (root3) {
-              var cmp2 = comparator(d.key, root3.key);
-              if (cmp2 === 0)
-                break;
-              else if (cmp2 < 0) {
-                successor = root3;
-                root3 = root3.left;
-              } else
-                root3 = root3.right;
-            }
-            return successor;
-          };
-          Tree2.prototype.prev = function(d) {
-            var root3 = this._root;
-            var predecessor = null;
-            if (d.left !== null) {
-              predecessor = d.left;
-              while (predecessor.right) {
-                predecessor = predecessor.right;
+            };
+            Tree2.prototype.prev = function(d) {
+              var root3 = this._root;
+              var predecessor = null;
+              if (d.left !== null) {
+                predecessor = d.left;
+                while (predecessor.right) {
+                  predecessor = predecessor.right;
+                }
+                return predecessor;
+              }
+              var comparator = this._comparator;
+              while (root3) {
+                var cmp2 = comparator(d.key, root3.key);
+                if (cmp2 === 0)
+                  break;
+                else if (cmp2 < 0)
+                  root3 = root3.left;
+                else {
+                  predecessor = root3;
+                  root3 = root3.right;
+                }
               }
               return predecessor;
-            }
-            var comparator = this._comparator;
-            while (root3) {
-              var cmp2 = comparator(d.key, root3.key);
-              if (cmp2 === 0)
-                break;
-              else if (cmp2 < 0)
-                root3 = root3.left;
-              else {
-                predecessor = root3;
-                root3 = root3.right;
+            };
+            Tree2.prototype.clear = function() {
+              this._root = null;
+              this._size = 0;
+              return this;
+            };
+            Tree2.prototype.toList = function() {
+              return toList(this._root);
+            };
+            Tree2.prototype.load = function(keys, values, presort) {
+              if (values === void 0) {
+                values = [];
               }
-            }
-            return predecessor;
-          };
-          Tree2.prototype.clear = function() {
-            this._root = null;
-            this._size = 0;
-            return this;
-          };
-          Tree2.prototype.toList = function() {
-            return toList(this._root);
-          };
-          Tree2.prototype.load = function(keys, values, presort) {
-            if (values === void 0) {
-              values = [];
-            }
-            if (presort === void 0) {
-              presort = false;
-            }
-            var size = keys.length;
-            var comparator = this._comparator;
-            if (presort)
-              sort(keys, values, 0, size - 1, comparator);
-            if (this._root === null) {
-              this._root = loadRecursive(keys, values, 0, size);
-              this._size = size;
-            } else {
-              var mergedList = mergeLists(this.toList(), createList(keys, values), comparator);
-              size = this._size + size;
-              this._root = sortedListToBST({
-                head: mergedList
-              }, 0, size);
-            }
-            return this;
-          };
-          Tree2.prototype.isEmpty = function() {
-            return this._root === null;
-          };
-          Object.defineProperty(Tree2.prototype, "size", {
-            get: function get4() {
-              return this._size;
-            },
-            enumerable: true,
-            configurable: true
-          });
-          Object.defineProperty(Tree2.prototype, "root", {
-            get: function get4() {
-              return this._root;
-            },
-            enumerable: true,
-            configurable: true
-          });
-          Tree2.prototype.toString = function(printNode) {
-            if (printNode === void 0) {
-              printNode = function printNode2(n2) {
-                return String(n2.key);
-              };
-            }
-            var out = [];
-            printRow(this._root, "", true, function(v) {
-              return out.push(v);
-            }, printNode);
-            return out.join("");
-          };
-          Tree2.prototype.update = function(key, newKey, newData) {
-            var comparator = this._comparator;
-            var _a = split(key, this._root, comparator), left = _a.left, right = _a.right;
-            if (comparator(key, newKey) < 0) {
-              right = insert(newKey, newData, right, comparator);
-            } else {
-              left = insert(newKey, newData, left, comparator);
-            }
-            this._root = merge3(left, right, comparator);
-          };
-          Tree2.prototype.split = function(key) {
-            return split(key, this._root, this._comparator);
-          };
-          return Tree2;
-        }();
+              if (presort === void 0) {
+                presort = false;
+              }
+              var size = keys.length;
+              var comparator = this._comparator;
+              if (presort)
+                sort(keys, values, 0, size - 1, comparator);
+              if (this._root === null) {
+                this._root = loadRecursive(keys, values, 0, size);
+                this._size = size;
+              } else {
+                var mergedList = mergeLists(this.toList(), createList(keys, values), comparator);
+                size = this._size + size;
+                this._root = sortedListToBST({
+                  head: mergedList
+                }, 0, size);
+              }
+              return this;
+            };
+            Tree2.prototype.isEmpty = function() {
+              return this._root === null;
+            };
+            Object.defineProperty(Tree2.prototype, "size", {
+              get: function get4() {
+                return this._size;
+              },
+              enumerable: true,
+              configurable: true
+            });
+            Object.defineProperty(Tree2.prototype, "root", {
+              get: function get4() {
+                return this._root;
+              },
+              enumerable: true,
+              configurable: true
+            });
+            Tree2.prototype.toString = function(printNode) {
+              if (printNode === void 0) {
+                printNode = function printNode2(n2) {
+                  return String(n2.key);
+                };
+              }
+              var out = [];
+              printRow(this._root, "", true, function(v) {
+                return out.push(v);
+              }, printNode);
+              return out.join("");
+            };
+            Tree2.prototype.update = function(key, newKey, newData) {
+              var comparator = this._comparator;
+              var _a = split(key, this._root, comparator), left = _a.left, right = _a.right;
+              if (comparator(key, newKey) < 0) {
+                right = insert(newKey, newData, right, comparator);
+              } else {
+                left = insert(newKey, newData, left, comparator);
+              }
+              this._root = merge3(left, right, comparator);
+            };
+            Tree2.prototype.split = function(key) {
+              return split(key, this._root, this._comparator);
+            };
+            return Tree2;
+          }()
+        );
         function loadRecursive(keys, values, start2, end) {
           var size = end - start2;
           if (size > 0) {
@@ -4714,6 +4740,7 @@
         var SweepEvent = /* @__PURE__ */ function() {
           _createClass(SweepEvent2, null, [{
             key: "compare",
+            // for ordering sweep events in the sweep event queue
             value: function compare(a, b) {
               var ptCmp = SweepEvent2.comparePoints(a.point, b.point);
               if (ptCmp !== 0)
@@ -4724,6 +4751,7 @@
                 return a.isLeft ? 1 : -1;
               return Segment.compare(a.segment, b.segment);
             }
+            // for ordering points in sweep line order
           }, {
             key: "comparePoints",
             value: function comparePoints(aPt, bPt) {
@@ -4737,6 +4765,7 @@
                 return 1;
               return 0;
             }
+            // Warning: 'point' input will be modified and re-used (for performance)
           }]);
           function SweepEvent2(point2, isLeft) {
             _classCallCheck(this, SweepEvent2);
@@ -4761,6 +4790,8 @@
               }
               this.checkForConsuming();
             }
+            /* Do a pass over our linked events and check to see if any pair
+             * of segments match, and should be consumed. */
           }, {
             key: "checkForConsuming",
             value: function checkForConsuming() {
@@ -4791,6 +4822,16 @@
               }
               return events;
             }
+            /**
+             * Returns a comparator function for sorting linked events that will
+             * favor the event that will give us the smallest left-side angle.
+             * All ring construction starts as low as possible heading to the right,
+             * so by always turning left as sharp as possible we'll get polygons
+             * without uncessary loops & holes.
+             *
+             * The comparator function has a compute cache such that it avoids
+             * re-computing already-computed values.
+             */
           }, {
             key: "getLeftmostComparator",
             value: function getLeftmostComparator(baseEvent) {
@@ -4838,6 +4879,19 @@
         var Segment = /* @__PURE__ */ function() {
           _createClass(Segment2, null, [{
             key: "compare",
+            /* This compare() function is for ordering segments in the sweep
+             * line tree, and does so according to the following criteria:
+             *
+             * Consider the vertical line that lies an infinestimal step to the
+             * right of the right-more of the two left endpoints of the input
+             * segments. Imagine slowly moving a point up from negative infinity
+             * in the increasing y direction. Which of the two segments will that
+             * point intersect first? That segment comes 'before' the other one.
+             *
+             * If neither segment would be intersected by such a line, (if one
+             * or more of the segments are vertical) then the line to be considered
+             * is directly on the right-more of the two left inputs.
+             */
             value: function compare(a, b) {
               var alx = a.leftSE.point.x;
               var blx = b.leftSE.point.x;
@@ -4921,6 +4975,8 @@
                 return 1;
               return 0;
             }
+            /* Warning: a reference to ringWindings input will be stored,
+             *  and possibly will be later modified */
           }]);
           function Segment2(leftSE, rightSE, rings, windings) {
             _classCallCheck(this, Segment2);
@@ -4936,6 +4992,7 @@
           }
           _createClass(Segment2, [{
             key: "replaceRightSE",
+            /* When a segment is split, the rightSE is replaced with a new sweep event */
             value: function replaceRightSE(newRightSE) {
               this.rightSE = newRightSE;
               this.rightSE.segment = this;
@@ -4958,6 +5015,7 @@
                 }
               };
             }
+            /* A vector from the left point to the right */
           }, {
             key: "vector",
             value: function vector() {
@@ -4971,6 +5029,19 @@
             value: function isAnEndpoint(pt) {
               return pt.x === this.leftSE.point.x && pt.y === this.leftSE.point.y || pt.x === this.rightSE.point.x && pt.y === this.rightSE.point.y;
             }
+            /* Compare this segment with a point.
+             *
+             * A point P is considered to be colinear to a segment if there
+             * exists a distance D such that if we travel along the segment
+             * from one * endpoint towards the other a distance D, we find
+             * ourselves at point P.
+             *
+             * Return value indicates:
+             *
+             *   1: point lies above the segment (to the left of vertical)
+             *   0: point is colinear to segment
+             *  -1: point lies below the segment (to the right of vertical)
+             */
           }, {
             key: "comparePoint",
             value: function comparePoint(point2) {
@@ -4994,6 +5065,21 @@
                 return 0;
               return point2.y < yFromXDist ? -1 : 1;
             }
+            /**
+             * Given another segment, returns the first non-trivial intersection
+             * between the two segments (in terms of sweep line ordering), if it exists.
+             *
+             * A 'non-trivial' intersection is one that will cause one or both of the
+             * segments to be split(). As such, 'trivial' vs. 'non-trivial' intersection:
+             *
+             *   * endpoint of segA with endpoint of segB --> trivial
+             *   * endpoint of segA with point along segB --> non-trivial
+             *   * endpoint of segB with point along segA --> non-trivial
+             *   * point along segA with point along segB --> non-trivial
+             *
+             * If no non-trivial intersection exists, return null
+             * Else, return null.
+             */
           }, {
             key: "getIntersection",
             value: function getIntersection(other) {
@@ -5044,6 +5130,18 @@
                 return null;
               return rounder.round(pt.x, pt.y);
             }
+            /**
+             * Split the given segment into multiple segments on the given points.
+             *  * Each existing segment will retain its leftSE and a new rightSE will be
+             *    generated for it.
+             *  * A new segment will be generated which will adopt the original segment's
+             *    rightSE, and a new leftSE will be generated for it.
+             *  * If there are more than two points given to split on, new segments
+             *    in the middle will be generated with new leftSE and rightSE's.
+             *  * An array of the newly generated SweepEvents will be returned.
+             *
+             * Warning: input array of points is modified
+             */
           }, {
             key: "split",
             value: function split2(point2) {
@@ -5068,6 +5166,7 @@
               }
               return newEvents;
             }
+            /* Swap which event is left and right */
           }, {
             key: "swapEvents",
             value: function swapEvents() {
@@ -5080,6 +5179,8 @@
                 this.windings[i2] *= -1;
               }
             }
+            /* Consume another segment. We take their rings under our wing
+             * and mark them as consumed. Use for perfectly overlapping segments */
           }, {
             key: "consume",
             value: function consume(other) {
@@ -5120,6 +5221,7 @@
               consumee.leftSE.consumedBy = consumer.leftSE;
               consumee.rightSE.consumedBy = consumer.rightSE;
             }
+            /* The first segment previous segment chain that is in the result */
           }, {
             key: "prevInResult",
             value: function prevInResult() {
@@ -5200,6 +5302,7 @@
               }
               return this._afterState;
             }
+            /* Is this segment part of the final result? */
           }, {
             key: "isInResult",
             value: function isInResult() {
@@ -5429,6 +5532,8 @@
         var RingOut = /* @__PURE__ */ function() {
           _createClass(RingOut2, null, [{
             key: "factory",
+            /* Given the segments from the sweep line pass, compute & return a series
+             * of closed rings from all the segments marked to be part of the result */
             value: function factory(allSegments) {
               var ringsOut = [];
               for (var i2 = 0, iMax = allSegments.length; i2 < iMax; i2++) {
@@ -5540,6 +5645,7 @@
               }
               return this._enclosingRing;
             }
+            /* Returns the ring that encloses this one, if any */
           }, {
             key: "_calcEnclosingRing",
             value: function _calcEnclosingRing() {
@@ -5755,6 +5861,8 @@
               }
               return newEvents;
             }
+            /* Safely split a segment that is currently in the datastructures
+             * IE - a segment other than the one that is currently being processed. */
           }, {
             key: "_splitSafely",
             value: function _splitSafely(seg, pt) {
@@ -5778,8 +5886,8 @@
           }
           _createClass(Operation2, [{
             key: "run",
-            value: function run(type3, geom, moreGeoms) {
-              operation.type = type3;
+            value: function run(type2, geom, moreGeoms) {
+              operation.type = type2;
               rounder.reset();
               var multipolys = [new MultiPolyIn(geom, true)];
               for (var i2 = 0, iMax = moreGeoms.length; i2 < iMax; i2++) {
@@ -6812,6 +6920,7 @@
         cloneableTags[argsTag] = cloneableTags[arrayTag] = cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = cloneableTags[boolTag] = cloneableTags[dateTag] = cloneableTags[float32Tag] = cloneableTags[float64Tag] = cloneableTags[int8Tag] = cloneableTags[int16Tag] = cloneableTags[int32Tag] = cloneableTags[mapTag] = cloneableTags[numberTag] = cloneableTags[objectTag] = cloneableTags[regexpTag] = cloneableTags[setTag] = cloneableTags[stringTag] = cloneableTags[symbolTag2] = cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
         cloneableTags[errorTag] = cloneableTags[funcTag] = cloneableTags[weakMapTag] = false;
         var deburredLetters = {
+          // Latin-1 Supplement block.
           "\xC0": "A",
           "\xC1": "A",
           "\xC2": "A",
@@ -6874,6 +6983,7 @@
           "\xDE": "Th",
           "\xFE": "th",
           "\xDF": "ss",
+          // Latin Extended-A block.
           "\u0100": "A",
           "\u0102": "A",
           "\u0104": "A",
@@ -7459,11 +7569,47 @@
             this.__values__ = undefined2;
           }
           lodash.templateSettings = {
+            /**
+             * Used to detect `data` property values to be HTML-escaped.
+             *
+             * @memberOf _.templateSettings
+             * @type {RegExp}
+             */
             "escape": reEscape,
+            /**
+             * Used to detect code to be evaluated.
+             *
+             * @memberOf _.templateSettings
+             * @type {RegExp}
+             */
             "evaluate": reEvaluate,
+            /**
+             * Used to detect `data` property values to inject.
+             *
+             * @memberOf _.templateSettings
+             * @type {RegExp}
+             */
             "interpolate": reInterpolate,
+            /**
+             * Used to reference the data object in the template text.
+             *
+             * @memberOf _.templateSettings
+             * @type {string}
+             */
             "variable": "",
+            /**
+             * Used to import variables into the compiled template.
+             *
+             * @memberOf _.templateSettings
+             * @type {Object}
+             */
             "imports": {
+              /**
+               * A reference to the `lodash` function.
+               *
+               * @memberOf _.templateSettings.imports
+               * @type {Function}
+               */
               "_": lodash
             }
           };
@@ -7512,11 +7658,11 @@
                 index += dir;
                 var iterIndex = -1, value = array2[index];
                 while (++iterIndex < iterLength) {
-                  var data = iteratees[iterIndex], iteratee2 = data.iteratee, type3 = data.type, computed = iteratee2(value);
-                  if (type3 == LAZY_MAP_FLAG) {
+                  var data = iteratees[iterIndex], iteratee2 = data.iteratee, type2 = data.type, computed = iteratee2(value);
+                  if (type2 == LAZY_MAP_FLAG) {
                     value = computed;
                   } else if (!computed) {
-                    if (type3 == LAZY_FILTER_FLAG) {
+                    if (type2 == LAZY_FILTER_FLAG) {
                       continue outer;
                     } else {
                       break outer;
@@ -7713,7 +7859,11 @@
           function arrayLikeKeys(value, inherited) {
             var isArr = isArray2(value), isArg = !isArr && isArguments(value), isBuff = !isArr && !isArg && isBuffer(value), isType = !isArr && !isArg && !isBuff && isTypedArray(value), skipIndexes = isArr || isArg || isBuff || isType, result2 = skipIndexes ? baseTimes(value.length, String2) : [], length = result2.length;
             for (var key in value) {
-              if ((inherited || hasOwnProperty2.call(value, key)) && !(skipIndexes && (key == "length" || isBuff && (key == "offset" || key == "parent") || isType && (key == "buffer" || key == "byteLength" || key == "byteOffset") || isIndex(key, length)))) {
+              if ((inherited || hasOwnProperty2.call(value, key)) && !(skipIndexes && // Safari 9 has enumerable `arguments.length` in strict mode.
+              (key == "length" || // Node.js 0.10 has enumerable non-index properties on buffers.
+              isBuff && (key == "offset" || key == "parent") || // PhantomJS 2 has enumerable non-index properties on typed arrays.
+              isType && (key == "buffer" || key == "byteLength" || key == "byteOffset") || // Skip index properties.
+              isIndex(key, length)))) {
                 result2.push(key);
               }
             }
@@ -9553,16 +9703,16 @@
             return isArray2(value) || isArguments(value) || !!(spreadableSymbol && value && value[spreadableSymbol]);
           }
           function isIndex(value, length) {
-            var type3 = typeof value;
+            var type2 = typeof value;
             length = length == null ? MAX_SAFE_INTEGER : length;
-            return !!length && (type3 == "number" || type3 != "symbol" && reIsUint.test(value)) && (value > -1 && value % 1 == 0 && value < length);
+            return !!length && (type2 == "number" || type2 != "symbol" && reIsUint.test(value)) && (value > -1 && value % 1 == 0 && value < length);
           }
           function isIterateeCall(value, index, object) {
             if (!isObject3(object)) {
               return false;
             }
-            var type3 = typeof index;
-            if (type3 == "number" ? isArrayLike(object) && isIndex(index, object.length) : type3 == "string" && index in object) {
+            var type2 = typeof index;
+            if (type2 == "number" ? isArrayLike(object) && isIndex(index, object.length) : type2 == "string" && index in object) {
               return eq(object[index], value);
             }
             return false;
@@ -9571,15 +9721,15 @@
             if (isArray2(value)) {
               return false;
             }
-            var type3 = typeof value;
-            if (type3 == "number" || type3 == "symbol" || type3 == "boolean" || value == null || isSymbol2(value)) {
+            var type2 = typeof value;
+            if (type2 == "number" || type2 == "symbol" || type2 == "boolean" || value == null || isSymbol2(value)) {
               return true;
             }
             return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || object != null && value in Object2(object);
           }
           function isKeyable(value) {
-            var type3 = typeof value;
-            return type3 == "string" || type3 == "number" || type3 == "symbol" || type3 == "boolean" ? value !== "__proto__" : value === null;
+            var type2 = typeof value;
+            return type2 == "string" || type2 == "number" || type2 == "symbol" || type2 == "boolean" ? value !== "__proto__" : value === null;
           }
           function isLaziable(func) {
             var funcName = getFuncName(func), other = lodash[funcName];
@@ -10774,8 +10924,8 @@
             return typeof value == "number" && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
           }
           function isObject3(value) {
-            var type3 = typeof value;
-            return value != null && (type3 == "object" || type3 == "function");
+            var type2 = typeof value;
+            return value != null && (type2 == "object" || type2 == "function");
           }
           function isObjectLike2(value) {
             return value != null && typeof value == "object";
@@ -11986,12 +12136,12 @@
             };
           });
           arrayEach(["filter", "map", "takeWhile"], function(methodName, index) {
-            var type3 = index + 1, isFilter = type3 == LAZY_FILTER_FLAG || type3 == LAZY_WHILE_FLAG;
+            var type2 = index + 1, isFilter = type2 == LAZY_FILTER_FLAG || type2 == LAZY_WHILE_FLAG;
             LazyWrapper.prototype[methodName] = function(iteratee2) {
               var result2 = this.clone();
               result2.__iteratees__.push({
                 "iteratee": getIteratee(iteratee2, 3),
-                "type": type3
+                "type": type2
               });
               result2.__filtered__ = result2.__filtered__ || isFilter;
               return result2;
@@ -12482,6 +12632,7 @@
         destroy: function() {
           this.buf = null;
         },
+        // === READING =================================================================
         readFields: function(readField, result, end) {
           end = end || this.length;
           while (this.pos < end) {
@@ -12506,6 +12657,7 @@
           this.pos += 4;
           return val;
         },
+        // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed)
         readFixed64: function() {
           var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;
           this.pos += 8;
@@ -12572,6 +12724,7 @@
           this.pos = end;
           return buffer;
         },
+        // verbose for performance reasons; doesn't affect gzipped size
         readPackedVarint: function(arr, isSigned) {
           if (this.type !== Pbf.Bytes)
             return arr.push(this.readVarint(isSigned));
@@ -12654,21 +12807,22 @@
           return arr;
         },
         skip: function(val) {
-          var type3 = val & 7;
-          if (type3 === Pbf.Varint)
+          var type2 = val & 7;
+          if (type2 === Pbf.Varint)
             while (this.buf[this.pos++] > 127) {
             }
-          else if (type3 === Pbf.Bytes)
+          else if (type2 === Pbf.Bytes)
             this.pos = this.readVarint() + this.pos;
-          else if (type3 === Pbf.Fixed32)
+          else if (type2 === Pbf.Fixed32)
             this.pos += 4;
-          else if (type3 === Pbf.Fixed64)
+          else if (type2 === Pbf.Fixed64)
             this.pos += 8;
           else
-            throw new Error("Unimplemented type: " + type3);
+            throw new Error("Unimplemented type: " + type2);
         },
-        writeTag: function(tag, type3) {
-          this.writeVarint(tag << 3 | type3);
+        // === WRITING =================================================================
+        writeTag: function(tag, type2) {
+          this.writeVarint(tag << 3 | type2);
         },
         realloc: function(min3) {
           var length = this.length || 16;
@@ -13121,67 +13275,190 @@
         this.y = y;
       }
       Point.prototype = {
+        /**
+         * Clone this point, returning a new point that can be modified
+         * without affecting the old one.
+         * @return {Point} the clone
+         */
         clone: function() {
           return new Point(this.x, this.y);
         },
+        /**
+         * Add this point's x & y coordinates to another point,
+         * yielding a new point.
+         * @param {Point} p the other point
+         * @return {Point} output point
+         */
         add: function(p) {
           return this.clone()._add(p);
         },
+        /**
+         * Subtract this point's x & y coordinates to from point,
+         * yielding a new point.
+         * @param {Point} p the other point
+         * @return {Point} output point
+         */
         sub: function(p) {
           return this.clone()._sub(p);
         },
+        /**
+         * Multiply this point's x & y coordinates by point,
+         * yielding a new point.
+         * @param {Point} p the other point
+         * @return {Point} output point
+         */
         multByPoint: function(p) {
           return this.clone()._multByPoint(p);
         },
+        /**
+         * Divide this point's x & y coordinates by point,
+         * yielding a new point.
+         * @param {Point} p the other point
+         * @return {Point} output point
+         */
         divByPoint: function(p) {
           return this.clone()._divByPoint(p);
         },
+        /**
+         * Multiply this point's x & y coordinates by a factor,
+         * yielding a new point.
+         * @param {Point} k factor
+         * @return {Point} output point
+         */
         mult: function(k) {
           return this.clone()._mult(k);
         },
+        /**
+         * Divide this point's x & y coordinates by a factor,
+         * yielding a new point.
+         * @param {Point} k factor
+         * @return {Point} output point
+         */
         div: function(k) {
           return this.clone()._div(k);
         },
+        /**
+         * Rotate this point around the 0, 0 origin by an angle a,
+         * given in radians
+         * @param {Number} a angle to rotate around, in radians
+         * @return {Point} output point
+         */
         rotate: function(a) {
           return this.clone()._rotate(a);
         },
+        /**
+         * Rotate this point around p point by an angle a,
+         * given in radians
+         * @param {Number} a angle to rotate around, in radians
+         * @param {Point} p Point to rotate around
+         * @return {Point} output point
+         */
         rotateAround: function(a, p) {
           return this.clone()._rotateAround(a, p);
         },
+        /**
+         * Multiply this point by a 4x1 transformation matrix
+         * @param {Array<Number>} m transformation matrix
+         * @return {Point} output point
+         */
         matMult: function(m) {
           return this.clone()._matMult(m);
         },
+        /**
+         * Calculate this point but as a unit vector from 0, 0, meaning
+         * that the distance from the resulting point to the 0, 0
+         * coordinate will be equal to 1 and the angle from the resulting
+         * point to the 0, 0 coordinate will be the same as before.
+         * @return {Point} unit vector point
+         */
         unit: function() {
           return this.clone()._unit();
         },
+        /**
+         * Compute a perpendicular point, where the new y coordinate
+         * is the old x coordinate and the new x coordinate is the old y
+         * coordinate multiplied by -1
+         * @return {Point} perpendicular point
+         */
         perp: function() {
           return this.clone()._perp();
         },
+        /**
+         * Return a version of this point with the x & y coordinates
+         * rounded to integers.
+         * @return {Point} rounded point
+         */
         round: function() {
           return this.clone()._round();
         },
+        /**
+         * Return the magitude of this point: this is the Euclidean
+         * distance from the 0, 0 coordinate to this point's x and y
+         * coordinates.
+         * @return {Number} magnitude
+         */
         mag: function() {
           return Math.sqrt(this.x * this.x + this.y * this.y);
         },
+        /**
+         * Judge whether this point is equal to another point, returning
+         * true or false.
+         * @param {Point} other the other point
+         * @return {boolean} whether the points are equal
+         */
         equals: function(other) {
           return this.x === other.x && this.y === other.y;
         },
+        /**
+         * Calculate the distance from this point to another point
+         * @param {Point} p the other point
+         * @return {Number} distance
+         */
         dist: function(p) {
           return Math.sqrt(this.distSqr(p));
         },
+        /**
+         * Calculate the distance from this point to another point,
+         * without the square root step. Useful if you're comparing
+         * relative distances.
+         * @param {Point} p the other point
+         * @return {Number} distance
+         */
         distSqr: function(p) {
           var dx = p.x - this.x, dy = p.y - this.y;
           return dx * dx + dy * dy;
         },
+        /**
+         * Get the angle from the 0, 0 coordinate to this point, in radians
+         * coordinates.
+         * @return {Number} angle
+         */
         angle: function() {
           return Math.atan2(this.y, this.x);
         },
+        /**
+         * Get the angle from this point to another point, in radians
+         * @param {Point} b the other point
+         * @return {Number} angle
+         */
         angleTo: function(b) {
           return Math.atan2(this.y - b.y, this.x - b.x);
         },
+        /**
+         * Get the angle between this point and another point, in radians
+         * @param {Point} b the other point
+         * @return {Number} angle
+         */
         angleWith: function(b) {
           return this.angleWithSep(b.x, b.y);
         },
+        /*
+         * Find the angle of the two vectors, solving the formula for
+         * the cross product a x b = |a||b|sin(θ) for θ.
+         * @param {Number} x the x-coordinate
+         * @param {Number} y the y-coordinate
+         * @return {Number} the angle in radians
+         */
         angleWithSep: function(x, y) {
           return Math.atan2(
             this.x * y - this.y * x,
@@ -13359,7 +13636,7 @@
         return [x12, y12, x2, y2];
       };
       VectorTileFeature.prototype.toGeoJSON = function(x, y, z) {
-        var size = this.extent * Math.pow(2, z), x05 = this.extent * x, y05 = this.extent * y, coords = this.loadGeometry(), type3 = VectorTileFeature.types[this.type], i2, j2;
+        var size = this.extent * Math.pow(2, z), x05 = this.extent * x, y05 = this.extent * y, coords = this.loadGeometry(), type2 = VectorTileFeature.types[this.type], i2, j2;
         function project(line) {
           for (var j3 = 0; j3 < line.length; j3++) {
             var p = line[j3], y2 = 180 - (p.y + y05) * 360 / size;
@@ -13395,12 +13672,12 @@
         if (coords.length === 1) {
           coords = coords[0];
         } else {
-          type3 = "Multi" + type3;
+          type2 = "Multi" + type2;
         }
         var result = {
           type: "Feature",
           geometry: {
-            type: type3,
+            type: type2,
             coordinates: coords
           },
           properties: this.properties
@@ -13813,10 +14090,14 @@
       var storeAPI = {
         version: "2.0.12",
         enabled: false,
+        // get returns the value of the given key. If that value
+        // is undefined, it returns optionalDefaultValue instead.
         get: function(key, optionalDefaultValue) {
           var data = this.storage.read(this._namespacePrefix + key);
           return this._deserialize(data, optionalDefaultValue);
         },
+        // set will store the given value at key and returns value.
+        // Calling set with value === undefined is equivalent to calling remove.
         set: function(key, value) {
           if (value === void 0) {
             return this.remove(key);
@@ -13824,21 +14105,31 @@
           this.storage.write(this._namespacePrefix + key, this._serialize(value));
           return value;
         },
+        // remove deletes the key and value stored at the given key.
         remove: function(key) {
           this.storage.remove(this._namespacePrefix + key);
         },
+        // each will call the given callback once for each key-value pair
+        // in this store.
         each: function(callback) {
           var self2 = this;
           this.storage.each(function(val, namespacedKey) {
             callback.call(self2, self2._deserialize(val), (namespacedKey || "").replace(self2._namespaceRegexp, ""));
           });
         },
+        // clearAll will remove all the stored key-value pairs in this store.
         clearAll: function() {
           this.storage.clearAll();
         },
+        // additional functionality that can't live in plugins
+        // ---------------------------------------------------
+        // hasNamespace returns true if this store instance has the given namespace.
         hasNamespace: function(namespace) {
           return this._namespacePrefix == "__storejs_" + namespace + "_";
         },
+        // createStore creates a store.js instance with the first
+        // functioning storage in the list of storage candidates,
+        // and applies the the given mixins to the instance.
         createStore: function() {
           return createStore.apply(this, arguments);
         },
@@ -13958,6 +14249,9 @@
               self2._assignPluginFnProp(pluginFnProp, propName);
             });
           },
+          // Put deprecated properties in the private API, so as to not expose it to accidential
+          // discovery through inspection of the store object.
+          // Deprecated: addStorage
           addStorage: function(storage) {
             _warn("store.addStorage(storage) is deprecated. Use createStore([storages])");
             this._addStorage(storage);
@@ -14287,6 +14581,7 @@
   var require_all = __commonJS({
     "node_modules/store/storages/all.js"(exports2, module2) {
       module2.exports = [
+        // Listed in order of usage preference
         require_localStorage(),
         require_oldFF_globalStorage(),
         require_oldIE_userDataStorage(),
@@ -14401,6 +14696,7 @@
         }
         if (typeof JSON.stringify !== "function") {
           meta = {
+            // table of character substitutions
             "\b": "\\b",
             "	": "\\t",
             "\n": "\\n",
@@ -15110,22 +15406,22 @@
       }
       _createClass(Emitter2, [{
         key: "addEventListener",
-        value: function addEventListener(type3, callback, options2) {
-          if (!(type3 in this.listeners)) {
-            this.listeners[type3] = [];
+        value: function addEventListener(type2, callback, options2) {
+          if (!(type2 in this.listeners)) {
+            this.listeners[type2] = [];
           }
-          this.listeners[type3].push({
+          this.listeners[type2].push({
             callback,
             options: options2
           });
         }
       }, {
         key: "removeEventListener",
-        value: function removeEventListener(type3, callback) {
-          if (!(type3 in this.listeners)) {
+        value: function removeEventListener(type2, callback) {
+          if (!(type2 in this.listeners)) {
             return;
           }
-          var stack = this.listeners[type3];
+          var stack = this.listeners[type2];
           for (var i2 = 0, l = stack.length; i2 < l; i2++) {
             if (stack[i2].callback === callback) {
               stack.splice(i2, 1);
@@ -15612,8 +15908,8 @@
     uiFieldCheck: () => uiFieldCheck,
     uiFieldColour: () => uiFieldText,
     uiFieldCombo: () => uiFieldCombo,
-    uiFieldCycleway: () => uiFieldCycleway,
     uiFieldDefaultCheck: () => uiFieldCheck,
+    uiFieldDirectionalCombo: () => uiFieldDirectionalCombo,
     uiFieldEmail: () => uiFieldText,
     uiFieldHelp: () => uiFieldHelp,
     uiFieldIdentifier: () => uiFieldText,
@@ -15656,6 +15952,7 @@
     uiKeepRightEditor: () => uiKeepRightEditor,
     uiKeepRightHeader: () => uiKeepRightHeader,
     uiLasso: () => uiLasso,
+    uiLengthIndicator: () => uiLengthIndicator,
     uiLoading: () => uiLoading,
     uiMapInMap: () => uiMapInMap,
     uiModal: () => uiModal,
@@ -15726,6 +16023,7 @@
     utilArrayUniq: () => utilArrayUniq,
     utilArrayUniqBy: () => utilArrayUniqBy,
     utilAsyncMap: () => utilAsyncMap,
+    utilCleanOsmString: () => utilCleanOsmString,
     utilCleanTags: () => utilCleanTags,
     utilCombinedTags: () => utilCombinedTags,
     utilCompareIDs: () => utilCompareIDs,
@@ -15869,17 +16167,21 @@
       } else if (options2 && options2.reverseOneway && key === "oneway") {
         return onewayReplacements[value] || value;
       } else if (includeAbsolute && directionKey.test(key)) {
-        if (compassReplacements[value])
-          return compassReplacements[value];
-        var degrees3 = parseFloat(value);
-        if (typeof degrees3 === "number" && !isNaN(degrees3)) {
-          if (degrees3 < 180) {
-            degrees3 += 180;
+        return value.split(";").map((value2) => {
+          if (compassReplacements[value2])
+            return compassReplacements[value2];
+          var degrees3 = Number(value2);
+          if (isFinite(degrees3)) {
+            if (degrees3 < 180) {
+              degrees3 += 180;
+            } else {
+              degrees3 -= 180;
+            }
+            return degrees3.toString();
           } else {
-            degrees3 -= 180;
+            return valueReplacements[value2] || value2;
           }
-          return degrees3.toString();
-        }
+        }).join(";");
       }
       return valueReplacements[value] || value;
     }
@@ -15940,21 +16242,28 @@
 
   // modules/osm/tags.js
   function osmIsInterestingTag(key) {
-    return key !== "attribution" && key !== "created_by" && key !== "source" && key !== "odbl" && key.indexOf("source:") !== 0 && key.indexOf("source_ref") !== 0 && key.indexOf("tiger:") !== 0;
+    return key !== "attribution" && key !== "created_by" && key !== "source" && key !== "odbl" && key.indexOf("source:") !== 0 && key.indexOf("source_ref") !== 0 && // purposely exclude colon
+    key.indexOf("tiger:") !== 0;
   }
   var osmLifecyclePrefixes = {
+    // nonexistent, might be built
     proposed: true,
     planned: true,
+    // under maintentance or between groundbreaking and opening
     construction: true,
+    // existent but not functional
     disused: true,
+    // dilapidated to nonexistent
     abandoned: true,
     was: true,
+    // nonexistent, still may appear in imagery
     dismantled: true,
     razed: true,
     demolished: true,
     destroyed: true,
     removed: true,
     obliterated: true,
+    // existent occasionally, e.g. stormwater drainage basin
     intermittent: true
   };
   function osmRemoveLifecyclePrefix(key) {
@@ -15987,6 +16296,9 @@
       turntable: true,
       wash: true
     },
+    traffic_calming: {
+      island: true
+    },
     waterway: {
       dam: true
     }
@@ -16542,9 +16854,9 @@
       streamGeometry(object.geometry, stream);
     },
     FeatureCollection: function(object, stream) {
-      var features2 = object.features, i2 = -1, n2 = features2.length;
+      var features = object.features, i2 = -1, n2 = features.length;
       while (++i2 < n2)
-        streamGeometry(features2[i2].geometry, stream);
+        streamGeometry(features[i2].geometry, stream);
     }
   };
   var streamGeometryType = {
@@ -17327,6 +17639,8 @@
             stream.lineEnd();
           point0 = null;
         },
+        // Rejoin first and last segments if there were intersections and the first
+        // and last points were visible.
         clean: function() {
           return clean2 | (v00 && v0) << 1;
         }
@@ -18947,39 +19261,39 @@
         copy2[t] = _[t].slice();
       return new Dispatch(copy2);
     },
-    call: function(type3, that) {
+    call: function(type2, that) {
       if ((n2 = arguments.length - 2) > 0)
         for (var args = new Array(n2), i2 = 0, n2, t; i2 < n2; ++i2)
           args[i2] = arguments[i2 + 2];
-      if (!this._.hasOwnProperty(type3))
-        throw new Error("unknown type: " + type3);
-      for (t = this._[type3], i2 = 0, n2 = t.length; i2 < n2; ++i2)
+      if (!this._.hasOwnProperty(type2))
+        throw new Error("unknown type: " + type2);
+      for (t = this._[type2], i2 = 0, n2 = t.length; i2 < n2; ++i2)
         t[i2].value.apply(that, args);
     },
-    apply: function(type3, that, args) {
-      if (!this._.hasOwnProperty(type3))
-        throw new Error("unknown type: " + type3);
-      for (var t = this._[type3], i2 = 0, n2 = t.length; i2 < n2; ++i2)
+    apply: function(type2, that, args) {
+      if (!this._.hasOwnProperty(type2))
+        throw new Error("unknown type: " + type2);
+      for (var t = this._[type2], i2 = 0, n2 = t.length; i2 < n2; ++i2)
         t[i2].value.apply(that, args);
     }
   };
-  function get(type3, name) {
-    for (var i2 = 0, n2 = type3.length, c; i2 < n2; ++i2) {
-      if ((c = type3[i2]).name === name) {
+  function get(type2, name) {
+    for (var i2 = 0, n2 = type2.length, c; i2 < n2; ++i2) {
+      if ((c = type2[i2]).name === name) {
         return c.value;
       }
     }
   }
-  function set(type3, name, callback) {
-    for (var i2 = 0, n2 = type3.length; i2 < n2; ++i2) {
-      if (type3[i2].name === name) {
-        type3[i2] = noop2, type3 = type3.slice(0, i2).concat(type3.slice(i2 + 1));
+  function set(type2, name, callback) {
+    for (var i2 = 0, n2 = type2.length; i2 < n2; ++i2) {
+      if (type2[i2].name === name) {
+        type2[i2] = noop2, type2 = type2.slice(0, i2).concat(type2.slice(i2 + 1));
         break;
       }
     }
     if (callback != null)
-      type3.push({ name, value: callback });
-    return type3;
+      type2.push({ name, value: callback });
+    return type2;
   }
   var dispatch_default = dispatch;
 
@@ -19723,31 +20037,31 @@
   }
 
   // node_modules/d3-selection/src/selection/dispatch.js
-  function dispatchEvent(node, type3, params) {
+  function dispatchEvent(node, type2, params) {
     var window2 = window_default(node), event = window2.CustomEvent;
     if (typeof event === "function") {
-      event = new event(type3, params);
+      event = new event(type2, params);
     } else {
       event = window2.document.createEvent("Event");
       if (params)
-        event.initEvent(type3, params.bubbles, params.cancelable), event.detail = params.detail;
+        event.initEvent(type2, params.bubbles, params.cancelable), event.detail = params.detail;
       else
-        event.initEvent(type3, false, false);
+        event.initEvent(type2, false, false);
     }
     node.dispatchEvent(event);
   }
-  function dispatchConstant(type3, params) {
+  function dispatchConstant(type2, params) {
     return function() {
-      return dispatchEvent(this, type3, params);
+      return dispatchEvent(this, type2, params);
     };
   }
-  function dispatchFunction(type3, params) {
+  function dispatchFunction(type2, params) {
     return function() {
-      return dispatchEvent(this, type3, params.apply(this, arguments));
+      return dispatchEvent(this, type2, params.apply(this, arguments));
     };
   }
-  function dispatch_default2(type3, params) {
-    return this.each((typeof params === "function" ? dispatchFunction : dispatchConstant)(type3, params));
+  function dispatch_default2(type2, params) {
+    return this.each((typeof params === "function" ? dispatchFunction : dispatchConstant)(type2, params));
   }
 
   // node_modules/d3-selection/src/selection/iterator.js
@@ -19892,7 +20206,7 @@
   var constant_default2 = (x) => () => x;
 
   // node_modules/d3-drag/src/event.js
-  function DragEvent(type3, {
+  function DragEvent(type2, {
     sourceEvent,
     subject,
     target,
@@ -19905,7 +20219,7 @@
     dispatch: dispatch10
   }) {
     Object.defineProperties(this, {
-      type: { value: type3, enumerable: true, configurable: true },
+      type: { value: type2, enumerable: true, configurable: true },
       sourceEvent: { value: sourceEvent, enumerable: true, configurable: true },
       subject: { value: subject, enumerable: true, configurable: true },
       target: { value: target, enumerable: true, configurable: true },
@@ -20019,9 +20333,9 @@
         return;
       dx = s.x - p[0] || 0;
       dy = s.y - p[1] || 0;
-      return function gesture(type3, event2, touch2) {
+      return function gesture(type2, event2, touch2) {
         var p02 = p, n2;
-        switch (type3) {
+        switch (type2) {
           case "start":
             gestures[identifier] = gesture, n2 = active++;
             break;
@@ -20032,9 +20346,9 @@
             break;
         }
         dispatch10.call(
-          type3,
+          type2,
           that,
-          new DragEvent(type3, {
+          new DragEvent(type2, {
             sourceEvent: event2,
             subject: s,
             target: drag,
@@ -20257,6 +20571,7 @@
       return this.rgb().displayable();
     },
     hex: color_formatHex,
+    // Deprecated! Use color.formatHex.
     formatHex: color_formatHex,
     formatHex8: color_formatHex8,
     formatHsl: color_formatHsl,
@@ -20324,6 +20639,7 @@
       return -0.5 <= this.r && this.r < 255.5 && (-0.5 <= this.g && this.g < 255.5) && (-0.5 <= this.b && this.b < 255.5) && (0 <= this.opacity && this.opacity <= 1);
     },
     hex: rgb_formatHex,
+    // Deprecated! Use color.formatHex.
     formatHex: rgb_formatHex,
     formatHex8: rgb_formatHex8,
     formatRgb: rgb_formatRgb,
@@ -20947,7 +21263,9 @@
     create(node, id2, {
       name,
       index,
+      // For context during callback.
       group,
+      // For context during callback.
       on: emptyOn,
       tween: emptyTween,
       time: timing.time,
@@ -21632,6 +21950,7 @@
   // node_modules/d3-transition/src/selection/transition.js
   var defaultTiming = {
     time: null,
+    // Set on use.
     delay: 0,
     duration: 250,
     ease: cubicInOut
@@ -21670,14 +21989,14 @@
   var constant_default4 = (x) => () => x;
 
   // node_modules/d3-zoom/src/event.js
-  function ZoomEvent(type3, {
+  function ZoomEvent(type2, {
     sourceEvent,
     target,
     transform: transform2,
     dispatch: dispatch10
   }) {
     Object.defineProperties(this, {
-      type: { value: type3, enumerable: true, configurable: true },
+      type: { value: type2, enumerable: true, configurable: true },
       sourceEvent: { value: sourceEvent, enumerable: true, configurable: true },
       target: { value: target, enumerable: true, configurable: true },
       transform: { value: transform2, enumerable: true, configurable: true },
@@ -21893,15 +22212,15 @@
         }
         return this;
       },
-      emit: function(type3) {
+      emit: function(type2) {
         var d = select_default2(this.that).datum();
         listeners.call(
-          type3,
+          type2,
           this.that,
-          new ZoomEvent(type3, {
+          new ZoomEvent(type2, {
             sourceEvent: this.sourceEvent,
             target: zoom,
-            type: type3,
+            type: type2,
             transform: this.that.__zoom,
             dispatch: listeners
           }),
@@ -22377,11 +22696,13 @@
   var nsiCdnUrl = "https://cdn.jsdelivr.net/npm/name-suggestion-index@{version}/";
   var osmApiConnections = [
     {
+      // "live" db
       url: "https://www.openstreetmap.org",
       client_id: "0tmNTmd0Jo1dQp4AUmMBLtGiD9YpMuXzHefitcuVStc",
       client_secret: "BTlNrNxIPitHdL4sP2clHw5KLoee9aKkA7dQbc0Bj7Q"
     },
     {
+      // "dev" db
       url: "https://api06.dev.openstreetmap.org",
       client_id: "Ee1wWJ6UlpERbF6BfTNOpwn0R8k_06mvMXdDUkeHMgw",
       client_secret: "OnfWFC-JkZNHyYdr_viNn_h_RTZXRslKcUxllOXqf5g"
@@ -22393,7 +22714,7 @@
   // package.json
   var package_default = {
     name: "iD",
-    version: "2.23.2",
+    version: "2.24.2",
     description: "A friendly editor for OpenStreetMap",
     main: "dist/iD.min.js",
     repository: "github:openstreetmap/iD",
@@ -22409,7 +22730,7 @@
       build: "run-s build:css build:data build:js",
       "build:css": "node scripts/build_css.js",
       "build:data": "shx mkdir -p dist/data && node scripts/build_data.js",
-      "build:stats": "esbuild-visualizer --metadata dist/esbuild.json --exclude *.png --filename docs/statistics.html",
+      "build:stats": "node config/esbuild.config.mjs --stats && esbuild-visualizer --metadata dist/esbuild.json --exclude *.png --filename docs/statistics.html && shx rm dist/esbuild.json",
       "build:js": "node config/esbuild.config.mjs",
       "build:js:watch": "node config/esbuild.config.mjs --watch",
       clean: "shx rm -f dist/esbuild.json dist/*.js dist/*.map dist/*.css dist/img/*.svg",
@@ -22435,8 +22756,8 @@
       translations: "node scripts/update_locales.js"
     },
     dependencies: {
-      "@ideditor/country-coder": "~5.0.3",
-      "@ideditor/location-conflation": "~1.0.2",
+      "@ideditor/country-coder": "~5.1.0",
+      "@ideditor/location-conflation": "~1.1.0",
       "@mapbox/geojson-area": "^0.2.2",
       "@mapbox/sexagesimal": "1.2.0",
       "@mapbox/vector-tile": "^1.3.1",
@@ -22469,17 +22790,17 @@
       "@ideditor/temaki": "~5.2.0",
       "@mapbox/maki": "^8.0.0",
       "@openstreetmap/id-tagging-schema": "^5.0.1",
+      "@transifex/api": "^5.0.1",
       autoprefixer: "^10.0.1",
-      btoa: "^1.2.1",
       chai: "^4.3.4",
       chalk: "^4.1.2",
       "cldr-core": "^41.0.0",
       "cldr-localenames-full": "^41.0.0",
       "concat-files": "^0.1.1",
-      d3: "~7.6.1",
+      d3: "~7.8.1",
       "editor-layer-index": "github:osmlab/editor-layer-index#gh-pages",
-      esbuild: "^0.15.7",
-      "esbuild-visualizer": "^0.3.1",
+      esbuild: "^0.17.3",
+      "esbuild-visualizer": "^0.4.0",
       eslint: "^8.8.0",
       "fetch-mock": "^9.11.0",
       gaze: "^1.1.3",
@@ -22499,7 +22820,7 @@
       "name-suggestion-index": "~6.0",
       "node-fetch": "^2.6.1",
       "npm-run-all": "^4.0.0",
-      "osm-community-index": "~5.3.0",
+      "osm-community-index": "~5.5.0",
       postcss: "^8.1.1",
       "postcss-selector-prepend": "^0.5.0",
       shelljs: "^0.8.0",
@@ -22508,7 +22829,7 @@
       "sinon-chai": "^3.7.0",
       smash: "0.0",
       "static-server": "^2.2.1",
-      "svg-sprite": "2.0.1",
+      "svg-sprite": "2.0.2",
       vparse: "~1.1.0"
     },
     engines: {
@@ -22626,8 +22947,7 @@
 
   // node_modules/@ideditor/country-coder/dist/country-coder.mjs
   var import_which_polygon = __toESM(require_which_polygon(), 1);
-  var type = "FeatureCollection";
-  var features = [
+  var borders_default = { type: "FeatureCollection", features: [
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     { type: "Feature", properties: { wikidata: "Q22", nameEn: "Scotland", aliases: ["GB-SCT"], country: "GB", groups: ["Q23666", "Q3336843", "154", "150", "UN"], driveSide: "left", roadSpeedUnit: "mph", roadHeightUnit: "ft", callingCodes: ["44"] }, geometry: { type: "MultiPolygon", coordinates: [[[[0.792, 57.56437], [-0.3751, 61.32236], [-14.78497, 57.60709], [-6.82333, 55.83103], [-4.69044, 54.3629], [-3.38407, 54.94278], [-3.09361, 54.94924], [-3.02906, 55.04606], [-2.63532, 55.19452], [-2.6095, 55.28488], [-2.17058, 55.45916], [-2.30613, 55.62698], [0.792, 57.56437]]]] } },
     { type: "Feature", properties: { wikidata: "Q25", nameEn: "Wales", aliases: ["GB-WLS"], country: "GB", groups: ["Q23666", "Q3336843", "154", "150", "UN"], driveSide: "left", roadSpeedUnit: "mph", roadHeightUnit: "ft", callingCodes: ["44"] }, geometry: { type: "MultiPolygon", coordinates: [[[[-3.5082, 53.54318], [-5.37267, 53.63269], [-6.03913, 51.13217], [-3.20563, 51.31615], [-2.66336, 51.59504], [-2.66234, 51.83555], [-2.74277, 51.84367], [-2.78742, 51.88833], [-2.8818, 51.93196], [-2.97111, 51.90456], [-3.12638, 52.08114], [-3.09289, 52.20546], [-3.00785, 52.2753], [-2.99701, 52.323], [-2.95364, 52.3501], [-3.04687, 52.34504], [-3.22754, 52.42526], [-3.22971, 52.45344], [-3.13359, 52.49174], [-3.03603, 52.49969], [-2.99701, 52.551], [-3.00929, 52.57774], [-3.08662, 52.54811], [-3.09746, 52.53077], [-3.12926, 52.5286], [-3.13648, 52.58208], [-3.04398, 52.65435], [-3.01724, 52.72083], [-2.95581, 52.71794], [-3.01001, 52.76636], [-3.08734, 52.77504], [-3.16105, 52.79599], [-3.15744, 52.84947], [-3.13576, 52.895], [-2.97243, 52.9651], [-2.92401, 52.93836], [-2.85897, 52.94487], [-2.80549, 52.89428], [-2.72221, 52.92969], [-2.7251, 52.98389], [-2.83133, 52.99184], [-2.89131, 53.09374], [-2.87469, 53.12337], [-2.90649, 53.10964], [-2.98598, 53.15589], [-2.92022, 53.17685], [-2.92329, 53.19383], [-3.03675, 53.25092], [-3.08228, 53.25526], [-3.5082, 53.54318]]]] } },
@@ -22804,7 +23124,7 @@
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     { type: "Feature", properties: { iso1A2: "ZW", iso1A3: "ZWE", iso1N3: "716", wikidata: "Q954", nameEn: "Zimbabwe", groups: ["014", "202", "002", "UN"], driveSide: "left", callingCodes: ["263"] }, geometry: { type: "MultiPolygon", coordinates: [[[[30.41902, -15.62269], [30.35574, -15.6513], [29.8317, -15.6126], [29.4437, -15.68702], [29.21955, -15.76589], [29.01298, -15.93805], [28.9243, -15.93987], [28.8501, -16.04537], [28.81454, -16.48611], [28.76199, -16.51575], [28.73725, -16.5528], [27.83141, -16.96274], [27.62795, -17.24365], [27.61377, -17.34378], [27.30736, -17.60487], [27.14196, -17.81398], [26.89926, -17.98756], [26.74314, -18.0199], [26.68403, -18.07411], [26.55918, -17.99638], [26.21601, -17.88608], [26.0908, -17.93021], [26.08925, -17.98168], [25.85892, -17.97726], [25.85738, -17.91403], [25.6827, -17.81987], [25.51646, -17.86232], [25.26433, -17.79571], [25.23909, -17.90832], [25.31799, -18.07091], [25.39972, -18.12691], [25.53465, -18.39041], [25.68859, -18.56165], [25.79217, -18.6355], [25.82353, -18.82808], [25.94326, -18.90362], [25.99837, -19.02943], [25.96226, -19.08152], [26.17227, -19.53709], [26.72246, -19.92707], [27.21278, -20.08244], [27.29831, -20.28935], [27.28865, -20.49873], [27.69361, -20.48531], [27.72972, -20.51735], [27.69171, -21.08409], [27.91407, -21.31621], [28.01669, -21.57624], [28.29416, -21.59037], [28.49942, -21.66634], [28.58114, -21.63455], [29.07763, -21.81877], [29.04023, -21.85864], [29.02191, -21.90647], [29.02191, -21.95665], [29.04108, -22.00563], [29.08495, -22.04867], [29.14501, -22.07275], [29.1974, -22.07472], [29.24648, -22.05967], [29.3533, -22.18363], [29.37703, -22.19581], [29.64609, -22.12917], [29.76848, -22.14128], [29.92242, -22.19408], [30.13147, -22.30841], [30.2265, -22.2961], [30.28351, -22.35587], [30.38614, -22.34533], [30.48686, -22.31368], [30.6294, -22.32599], [30.86696, -22.28907], [31.08932, -22.34884], [31.16344, -22.32599], [31.30611, -22.422], [31.38336, -22.36919], [32.41234, -21.31246], [32.48236, -21.32873], [32.37115, -21.133], [32.51644, -20.91929], [32.48122, -20.63319], [32.55167, -20.56312], [32.66174, -20.56106], [32.85987, -20.27841], [32.85987, -20.16686], [32.93032, -20.03868], [33.01178, -20.02007], [33.06461, -19.77787], [32.95013, -19.67219], [32.84666, -19.68462], [32.84446, -19.48343], [32.78282, -19.47513], [32.77966, -19.36098], [32.85107, -19.29238], [32.87088, -19.09279], [32.84006, -19.0262], [32.72118, -19.02204], [32.69917, -18.94293], [32.73439, -18.92628], [32.70137, -18.84712], [32.82465, -18.77419], [32.9017, -18.7992], [32.95013, -18.69079], [32.88629, -18.58023], [32.88629, -18.51344], [33.02278, -18.4696], [33.03159, -18.35054], [32.94133, -17.99705], [33.0492, -17.60298], [32.98536, -17.55891], [32.96554, -17.48964], [33.0426, -17.3468], [33.00517, -17.30477], [32.96554, -17.11971], [32.84113, -16.92259], [32.91051, -16.89446], [32.97655, -16.70689], [32.78943, -16.70267], [32.69917, -16.66893], [32.71017, -16.59932], [32.42838, -16.4727], [32.28529, -16.43892], [32.02772, -16.43892], [31.91324, -16.41569], [31.90223, -16.34388], [31.67988, -16.19595], [31.42451, -16.15154], [31.30563, -16.01193], [31.13171, -15.98019], [30.97761, -16.05848], [30.91597, -15.99924], [30.42568, -15.9962], [30.41902, -15.62269]]]] } }
-  ];
-  var borders_default = { type, features };
+  ] };
   var borders = borders_default;
   var whichPolygonGetter = {};
   var featuresByCode = {};
@@ -23156,7 +23475,9 @@
           sharedGroups = sharedGroups.filter((groupID) => memberGroups.indexOf(groupID) !== -1);
         }
       });
-      props.groups = props.groups.concat(sharedGroups.filter((groupID) => props.groups.indexOf(groupID) === -1));
+      props.groups = props.groups.concat(
+        sharedGroups.filter((groupID) => props.groups.indexOf(groupID) === -1)
+      );
       sharedGroups.forEach((groupID) => {
         const groupFeature = featuresByCode[groupID];
         if (groupFeature.properties.members.indexOf(props.id) === -1) {
@@ -23170,11 +23491,15 @@
         if (!props.roadSpeedUnit)
           props.roadSpeedUnit = "km/h";
       } else if (props.members) {
-        const vals = Array.from(new Set(props.members.map((id2) => {
-          const member = featuresByCode[id2];
-          if (member.geometry)
-            return member.properties.roadSpeedUnit || "km/h";
-        }).filter(Boolean)));
+        const vals = Array.from(
+          new Set(
+            props.members.map((id2) => {
+              const member = featuresByCode[id2];
+              if (member.geometry)
+                return member.properties.roadSpeedUnit || "km/h";
+            }).filter(Boolean)
+          )
+        );
         if (vals.length === 1)
           props.roadSpeedUnit = vals[0];
       }
@@ -23185,11 +23510,15 @@
         if (!props.roadHeightUnit)
           props.roadHeightUnit = "m";
       } else if (props.members) {
-        const vals = Array.from(new Set(props.members.map((id2) => {
-          const member = featuresByCode[id2];
-          if (member.geometry)
-            return member.properties.roadHeightUnit || "m";
-        }).filter(Boolean)));
+        const vals = Array.from(
+          new Set(
+            props.members.map((id2) => {
+              const member = featuresByCode[id2];
+              if (member.geometry)
+                return member.properties.roadHeightUnit || "m";
+            }).filter(Boolean)
+          )
+        );
         if (vals.length === 1)
           props.roadHeightUnit = vals[0];
       }
@@ -23200,11 +23529,15 @@
         if (!props.driveSide)
           props.driveSide = "right";
       } else if (props.members) {
-        const vals = Array.from(new Set(props.members.map((id2) => {
-          const member = featuresByCode[id2];
-          if (member.geometry)
-            return member.properties.driveSide || "right";
-        }).filter(Boolean)));
+        const vals = Array.from(
+          new Set(
+            props.members.map((id2) => {
+              const member = featuresByCode[id2];
+              if (member.geometry)
+                return member.properties.driveSide || "right";
+            }).filter(Boolean)
+          )
+        );
         if (vals.length === 1)
           props.driveSide = vals[0];
       }
@@ -23212,13 +23545,17 @@
     function loadCallingCodes(feature22) {
       const props = feature22.properties;
       if (!feature22.geometry && props.members) {
-        props.callingCodes = Array.from(new Set(props.members.reduce((array2, id2) => {
-          const member = featuresByCode[id2];
-          if (member.geometry && member.properties.callingCodes) {
-            return array2.concat(member.properties.callingCodes);
-          }
-          return array2;
-        }, [])));
+        props.callingCodes = Array.from(
+          new Set(
+            props.members.reduce((array2, id2) => {
+              const member = featuresByCode[id2];
+              if (member.geometry && member.properties.callingCodes) {
+                return array2.concat(member.properties.callingCodes);
+              }
+              return array2;
+            }, [])
+          )
+        );
       }
     }
     function loadFlag(feature22) {
@@ -23301,8 +23638,8 @@
         }
       }
     }
-    const features2 = featuresContaining(loc);
-    const match = features2.find((feature22) => {
+    const features = featuresContaining(loc);
+    const match = features.find((feature22) => {
       let levelIndex = levels.indexOf(feature22.properties.level);
       if (feature22.properties.level === targetLevel || levelIndex > targetLevelIndex && levelIndex <= maxLevelIndex) {
         if (!withProp || feature22.properties[withProp]) {
@@ -23380,29 +23717,29 @@
     const feature22 = featureForID(id2);
     if (!feature22)
       return [];
-    let features2 = [];
+    let features = [];
     if (!strict) {
-      features2.push(feature22);
+      features.push(feature22);
     }
     const properties = feature22.properties;
     (properties.members || []).forEach((memberID) => {
-      features2.push(featuresByCode[memberID]);
+      features.push(featuresByCode[memberID]);
     });
-    return features2;
+    return features;
   }
   function aggregateFeature(id2) {
-    const features2 = featuresIn(id2, false);
-    if (features2.length === 0)
+    const features = featuresIn(id2, false);
+    if (features.length === 0)
       return null;
     let aggregateCoordinates = [];
-    features2.forEach((feature22) => {
+    features.forEach((feature22) => {
       if (feature22.geometry && feature22.geometry.type === "MultiPolygon" && feature22.geometry.coordinates) {
         aggregateCoordinates = aggregateCoordinates.concat(feature22.geometry.coordinates);
       }
     });
     return {
       type: "Feature",
-      properties: features2[0].properties,
+      properties: features[0].properties,
       geometry: {
         type: "MultiPolygon",
         coordinates: aggregateCoordinates
@@ -23425,6 +23762,24 @@
   var import_geojson_precision = __toESM(require_geojson_precision(), 1);
   var import_json_stringify_pretty_compact = __toESM(require_json_stringify_pretty_compact(), 1);
   var location_conflation_default = class {
+    // constructor
+    //
+    // `fc`  Optional FeatureCollection of known features
+    //
+    // Optionally pass a GeoJSON FeatureCollection of known features which we can refer to later.
+    // Each feature must have a filename-like `id`, for example: `something.geojson`
+    //
+    // {
+    //   "type": "FeatureCollection"
+    //   "features": [
+    //     {
+    //       "type": "Feature",
+    //       "id": "philly_metro.geojson",
+    //       "properties": { … },
+    //       "geometry": { … }
+    //     }
+    //   ]
+    // }
     constructor(fc) {
       this._cache = {};
       this._strict = true;
@@ -23455,6 +23810,19 @@
       world.properties.area = import_geojson_area.default.geometry(world.geometry) / 1e6;
       this._cache.Q2 = world;
     }
+    // validateLocation
+    // `location`  The location to validate
+    //
+    // Pass a `location` value to validate
+    //
+    // Returns a result like:
+    //   {
+    //     type:     'point', 'geojson', or 'countrycoder'
+    //     location:  the queried location
+    //     id:        the stable identifier for the feature
+    //   }
+    // or `null` if the location is invalid
+    //
     validateLocation(location) {
       if (Array.isArray(location) && (location.length === 2 || location.length === 3)) {
         const lon = location[0];
@@ -23482,6 +23850,20 @@
         return null;
       }
     }
+    // resolveLocation
+    // `location`  The location to resolve
+    //
+    // Pass a `location` value to resolve
+    //
+    // Returns a result like:
+    //   {
+    //     type:      'point', 'geojson', or 'countrycoder'
+    //     location:  the queried location
+    //     id:        a stable identifier for the feature
+    //     feature:   the resolved GeoJSON feature
+    //   }
+    //  or `null` if the location is invalid
+    //
     resolveLocation(location) {
       const valid = this.validateLocation(location);
       if (!valid)
@@ -23502,6 +23884,7 @@
           id: id2,
           properties: { id: id2, area: Number(area.toFixed(2)) },
           geometry: (0, import_circle_to_polygon.default)([lon, lat], radius * 1e3, EDGES)
+          // km to m
         }, PRECISION);
         return Object.assign(valid, { feature: feature3 });
       } else if (valid.type === "geojson") {
@@ -23528,6 +23911,23 @@
         return null;
       }
     }
+    // validateLocationSet
+    // `locationSet`  the locationSet to validate
+    //
+    // Pass a locationSet Object to validate like:
+    //   {
+    //     include: [ Array of locations ],
+    //     exclude: [ Array of locations ]
+    //   }
+    //
+    // Returns a result like:
+    //   {
+    //     type:         'locationset'
+    //     locationSet:  the queried locationSet
+    //     id:           the stable identifier for the feature
+    //   }
+    // or `null` if the locationSet is invalid
+    //
     validateLocationSet(locationSet) {
       locationSet = locationSet || {};
       const validator = this.validateLocation.bind(this);
@@ -23549,6 +23949,24 @@
       }
       return { type: "locationset", locationSet, id: id2 };
     }
+    // resolveLocationSet
+    // `locationSet`  the locationSet to resolve
+    //
+    // Pass a locationSet Object to validate like:
+    //   {
+    //     include: [ Array of locations ],
+    //     exclude: [ Array of locations ]
+    //   }
+    //
+    // Returns a result like:
+    //   {
+    //     type:         'locationset'
+    //     locationSet:  the queried locationSet
+    //     id:           the stable identifier for the feature
+    //     feature:      the resolved GeoJSON feature
+    //   }
+    // or `null` if the locationSet is invalid
+    //
     resolveLocationSet(locationSet) {
       locationSet = locationSet || {};
       const valid = this.validateLocationSet(locationSet);
@@ -23573,6 +23991,8 @@
       this._cache[id2] = resultGeoJSON;
       return Object.assign(valid, { feature: resultGeoJSON });
     }
+    // strict
+    //
     strict(val) {
       if (val === void 0) {
         return this._strict;
@@ -23581,18 +24001,22 @@
         return this;
       }
     }
+    // cache
+    // convenience method to access the internal cache
     cache() {
       return this._cache;
     }
+    // stringify
+    // convenience method to prettyStringify the given object
     stringify(obj, options2) {
       return (0, import_json_stringify_pretty_compact.default)(obj, options2);
     }
   };
-  function _clip(features2, which) {
-    if (!Array.isArray(features2) || !features2.length)
+  function _clip(features, which) {
+    if (!Array.isArray(features) || !features.length)
       return null;
     const fn = { UNION: import_polygon_clipping.default.union, DIFFERENCE: import_polygon_clipping.default.difference }[which];
-    const args = features2.map((feature3) => feature3.geometry.coordinates);
+    const args = features.map((feature3) => feature3.geometry.coordinates);
     const coords = fn.apply(null, args);
     return {
       type: "Feature",
@@ -23625,6 +24049,9 @@
   var import_geojson_area2 = __toESM(require_geojson_area());
   var _loco = new location_conflation_default();
   var LocationManager = class {
+    /**
+     * @constructor
+     */
     constructor() {
       this._wp = null;
       this._resolved = /* @__PURE__ */ new Map();
@@ -23635,6 +24062,17 @@
       this._resolveLocationSet(world);
       this._rebuildIndex();
     }
+    /**
+     * _validateLocationSet
+     * Pass an Object with a `locationSet` property.
+     * Validates the `locationSet` and sets a `locationSetID` property on the object.
+     * To avoid so much computation we only resolve the include and exclude regions, but not the locationSet itself.
+     *
+     * Use `_resolveLocationSet()` instead if you need to resolve geojson of locationSet, for example to render it.
+     * Note: You need to call `_rebuildIndex()` after you're all finished validating the locationSets.
+     *
+     * @param  `obj`  Object to check, it should have `locationSet` property
+     */
     _validateLocationSet(obj) {
       if (obj.locationSetID)
         return;
@@ -23687,6 +24125,15 @@
         obj.locationSetID = "+[Q2]";
       }
     }
+    /**
+     * _resolveLocationSet
+     * Does everything that `_validateLocationSet()` does, but then "resolves" the locationSet into GeoJSON.
+     * This step is a bit more computationally expensive, so really only needed if you intend to render the shape.
+     *
+     * Note: You need to call `_rebuildIndex()` after you're all finished validating the locationSets.
+     *
+     * @param  `obj`  Object to check, it should have `locationSet` property
+     */
     _resolveLocationSet(obj) {
       this._validateLocationSet(obj);
       if (this._resolved.has(obj.locationSetID))
@@ -23707,9 +24154,31 @@
         obj.locationSetID = "+[Q2]";
       }
     }
+    /**
+     * _rebuildIndex
+     * Rebuilds the whichPolygon index with whatever features have been resolved into GeoJSON.
+     */
     _rebuildIndex() {
       this._wp = (0, import_which_polygon2.default)({ features: [...this._resolved.values()] });
     }
+    /**
+     * mergeCustomGeoJSON
+     * Accepts a FeatureCollection-like object containing custom locations
+     * Each feature must have a filename-like `id`, for example: `something.geojson`
+     * {
+     *   "type": "FeatureCollection"
+     *   "features": [
+     *     {
+     *       "type": "Feature",
+     *       "id": "philly_metro.geojson",
+     *       "properties": { … },
+     *       "geometry": { … }
+     *     }
+     *   ]
+     * }
+     *
+     * @param  `fc`  FeatureCollection-like Object containing custom locations
+     */
     mergeCustomGeoJSON(fc) {
       if (!fc || fc.type !== "FeatureCollection" || !Array.isArray(fc.features))
         return;
@@ -23729,6 +24198,24 @@
         _loco._cache[id2] = feature3;
       });
     }
+    /**
+     * mergeLocationSets
+     * Accepts an Array of Objects containing `locationSet` properties:
+     * [
+     *  { id: 'preset1', locationSet: {…} },
+     *  { id: 'preset2', locationSet: {…} },
+     *  …
+     * ]
+     * After validating, the Objects will be decorated with a `locationSetID` property:
+     * [
+     *  { id: 'preset1', locationSet: {…}, locationSetID: '+[Q2]' },
+     *  { id: 'preset2', locationSet: {…}, locationSetID: '+[Q30]' },
+     *  …
+     * ]
+     *
+     * @param  `objects`  Objects to check - they should have `locationSet` property
+     * @return  Promise resolved true (this function used to be slow/async, now it's faster and sync)
+     */
     mergeLocationSets(objects) {
       if (!Array.isArray(objects))
         return Promise.reject("nothing to do");
@@ -23736,6 +24223,14 @@
       this._rebuildIndex();
       return Promise.resolve(objects);
     }
+    /**
+     * locationSetID
+     * Returns a locationSetID for a given locationSet (fallback to `+[Q2]`, world)
+     * (The locationSet doesn't necessarily need to be resolved to compute its `id`)
+     *
+     * @param  `locationSet`  A locationSet Object, e.g. `{ include: ['us'] }`
+     * @return  String locationSetID, e.g. `+[Q30]`
+     */
     locationSetID(locationSet) {
       let locationSetID;
       try {
@@ -23745,10 +24240,40 @@
       }
       return locationSetID;
     }
+    /**
+     * feature
+     * Returns the resolved GeoJSON feature for a given locationSetID (fallback to 'world')
+     * A GeoJSON feature:
+     * {
+     *   type: 'Feature',
+     *   id: '+[Q30]',
+     *   properties: { id: '+[Q30]', area: 21817019.17, … },
+     *   geometry: { … }
+     * }
+     *
+     * @param  `locationSetID`  String identifier, e.g. `+[Q30]`
+     * @return  GeoJSON object (fallback to world)
+     */
     feature(locationSetID = "+[Q2]") {
       const feature3 = this._resolved.get(locationSetID);
       return feature3 || this._resolved.get("+[Q2]");
     }
+    /**
+     * locationSetsAt
+     * Find all the locationSets valid at the given location.
+     * Results include the area (in km²) to facilitate sorting.
+     *
+     * Object of locationSetIDs to areas (in km²)
+     * {
+     *   "+[Q2]": 511207893.3958111,
+     *   "+[Q30]": 21817019.17,
+     *   "+[new_jersey.geojson]": 22390.77,
+     *   …
+     * }
+     *
+     * @param  `loc`  `[lon,lat]` location to query, e.g. `[-74.4813, 40.7967]`
+     * @return  Object of locationSetIDs valid at given location
+     */
     locationSetsAt(loc) {
       let result = {};
       const hits = this._wp(loc, true) || [];
@@ -23785,6 +24310,7 @@
       });
       return result;
     }
+    // Direct access to the location-conflation resolver
     loco() {
       return _loco;
     }
@@ -23913,8 +24439,8 @@
 
   // node_modules/lodash-es/isObject.js
   function isObject(value) {
-    var type3 = typeof value;
-    return value != null && (type3 == "object" || type3 == "function");
+    var type2 = typeof value;
+    return value != null && (type2 == "object" || type2 == "function");
   }
   var isObject_default = isObject;
 
@@ -24152,7 +24678,7 @@
       _detected.version = navigator.appVersion;
     }
     _detected.version = _detected.version.split(/\W/).slice(0, 2).join(".");
-    _detected.opera = _detected.browser.toLowerCase() === "opera" && parseFloat(_detected.version) < 15;
+    _detected.opera = _detected.browser.toLowerCase() === "opera" && Number(_detected.version) < 15;
     if (_detected.browser.toLowerCase() === "msie") {
       _detected.ie = true;
       _detected.browser = "Internet Explorer";
@@ -24175,9 +24701,13 @@
       _detected.os = "win";
       _detected.platform = "Unknown";
     }
-    _detected.isMobileWebKit = (/\b(iPad|iPhone|iPod)\b/.test(ua) || navigator.platform === "MacIntel" && "maxTouchPoints" in navigator && navigator.maxTouchPoints > 1) && /WebKit/.test(ua) && !/Edge/.test(ua) && !window.MSStream;
+    _detected.isMobileWebKit = (/\b(iPad|iPhone|iPod)\b/.test(ua) || // HACK: iPadOS 13+ requests desktop sites by default by using a Mac user agent,
+    // so assume any "mac" with multitouch is actually iOS
+    navigator.platform === "MacIntel" && "maxTouchPoints" in navigator && navigator.maxTouchPoints > 1) && /WebKit/.test(ua) && !/Edge/.test(ua) && !window.MSStream;
     _detected.browserLocales = Array.from(new Set(
+      // remove duplicates
       [navigator.language].concat(navigator.languages || []).concat([
+        // old property for backwards compatibility
         navigator.userLanguage
       ]).filter(Boolean)
     ));
@@ -24389,7 +24919,9 @@
           callback,
           event: {
             key: void 0,
+            // preferred
             keyCode: 0,
+            // fallback
             modifiers: {
               shiftKey: false,
               ctrlKey: false,
@@ -24422,13 +24954,17 @@
     return keybinding;
   }
   utilKeybinding.modifierCodes = {
+    // Shift key, ⇧
     "\u21E7": 16,
     shift: 16,
+    // CTRL key, on Mac: ⌃
     "\u2303": 17,
     ctrl: 17,
+    // ALT key, on Mac: ⌥ (Alt)
     "\u2325": 18,
     alt: 18,
     option: 18,
+    // META, on Mac: ⌘ (CMD), on Windows (Win), on Linux (Super)
     "\u2318": 91,
     meta: 91,
     cmd: 91,
@@ -24444,76 +24980,108 @@
   utilKeybinding.plusKeys = ["plus", "ffplus", "=", "ffequals", "\u2260", "\xB1"];
   utilKeybinding.minusKeys = ["_", "-", "ffminus", "dash", "\u2013", "\u2014"];
   utilKeybinding.keys = {
+    // Backspace key, on Mac: ⌫ (Backspace)
     "\u232B": "Backspace",
     backspace: "Backspace",
+    // Tab Key, on Mac: ⇥ (Tab), on Windows ⇥⇥
     "\u21E5": "Tab",
     "\u21C6": "Tab",
     tab: "Tab",
+    // Return key, ↩
     "\u21A9": "Enter",
     "\u21B5": "Enter",
     "\u23CE": "Enter",
     "return": "Enter",
     enter: "Enter",
     "\u2305": "Enter",
+    // Pause/Break key
     "pause": "Pause",
     "pause-break": "Pause",
+    // Caps Lock key, ⇪
     "\u21EA": "CapsLock",
     caps: "CapsLock",
     "caps-lock": "CapsLock",
+    // Escape key, on Mac: ⎋, on Windows: Esc
     "\u238B": ["Escape", "Esc"],
     escape: ["Escape", "Esc"],
     esc: ["Escape", "Esc"],
+    // Space key
     space: [" ", "Spacebar"],
+    // Page-Up key, or pgup, on Mac: ↖
     "\u2196": "PageUp",
     pgup: "PageUp",
     "page-up": "PageUp",
+    // Page-Down key, or pgdown, on Mac: ↘
     "\u2198": "PageDown",
     pgdown: "PageDown",
     "page-down": "PageDown",
+    // END key, on Mac: ⇟
     "\u21DF": "End",
     end: "End",
+    // HOME key, on Mac: ⇞
     "\u21DE": "Home",
     home: "Home",
+    // Insert key, or ins
     ins: "Insert",
     insert: "Insert",
+    // Delete key, on Mac: ⌦ (Delete)
     "\u2326": ["Delete", "Del"],
     del: ["Delete", "Del"],
     "delete": ["Delete", "Del"],
+    // Left Arrow Key, or ←
     "\u2190": ["ArrowLeft", "Left"],
     left: ["ArrowLeft", "Left"],
     "arrow-left": ["ArrowLeft", "Left"],
+    // Up Arrow Key, or ↑
     "\u2191": ["ArrowUp", "Up"],
     up: ["ArrowUp", "Up"],
     "arrow-up": ["ArrowUp", "Up"],
+    // Right Arrow Key, or →
     "\u2192": ["ArrowRight", "Right"],
     right: ["ArrowRight", "Right"],
     "arrow-right": ["ArrowRight", "Right"],
+    // Up Arrow Key, or ↓
     "\u2193": ["ArrowDown", "Down"],
     down: ["ArrowDown", "Down"],
     "arrow-down": ["ArrowDown", "Down"],
+    // odities, stuff for backward compatibility (browsers and code):
+    // Num-Multiply, or *
     "*": ["*", "Multiply"],
     star: ["*", "Multiply"],
     asterisk: ["*", "Multiply"],
     multiply: ["*", "Multiply"],
+    // Num-Plus or +
     "+": ["+", "Add"],
     "plus": ["+", "Add"],
+    // Num-Subtract, or -
     "-": ["-", "Subtract"],
     subtract: ["-", "Subtract"],
     "dash": ["-", "Subtract"],
+    // Semicolon
     semicolon: ";",
+    // = or equals
     equals: "=",
+    // Comma, or ,
     comma: ",",
+    // Period, or ., or full-stop
     period: ".",
     "full-stop": ".",
+    // Slash, or /, or forward-slash
     slash: "/",
     "forward-slash": "/",
+    // Tick, or `, or back-quote
     tick: "`",
     "back-quote": "`",
+    // Open bracket, or [
     "open-bracket": "[",
+    // Back slash, or \
     "back-slash": "\\",
+    // Close backet, or ]
     "close-bracket": "]",
+    // Apostrophe, or Quote, or '
     quote: "'",
     apostrophe: "'",
+    // NUMPAD 0-9
     "num-0": "0",
     "num-1": "1",
     "num-2": "2",
@@ -24524,6 +25092,7 @@
     "num-7": "7",
     "num-8": "8",
     "num-9": "9",
+    // F1-F25
     f1: "F1",
     f2: "F2",
     f3: "F3",
@@ -24551,87 +25120,123 @@
     f25: "F25"
   };
   utilKeybinding.keyCodes = {
+    // Backspace key, on Mac: ⌫ (Backspace)
     "\u232B": 8,
     backspace: 8,
+    // Tab Key, on Mac: ⇥ (Tab), on Windows ⇥⇥
     "\u21E5": 9,
     "\u21C6": 9,
     tab: 9,
+    // Return key, ↩
     "\u21A9": 13,
     "\u21B5": 13,
     "\u23CE": 13,
     "return": 13,
     enter: 13,
     "\u2305": 13,
+    // Pause/Break key
     "pause": 19,
     "pause-break": 19,
+    // Caps Lock key, ⇪
     "\u21EA": 20,
     caps: 20,
     "caps-lock": 20,
+    // Escape key, on Mac: ⎋, on Windows: Esc
     "\u238B": 27,
     escape: 27,
     esc: 27,
+    // Space key
     space: 32,
+    // Page-Up key, or pgup, on Mac: ↖
     "\u2196": 33,
     pgup: 33,
     "page-up": 33,
+    // Page-Down key, or pgdown, on Mac: ↘
     "\u2198": 34,
     pgdown: 34,
     "page-down": 34,
+    // END key, on Mac: ⇟
     "\u21DF": 35,
     end: 35,
+    // HOME key, on Mac: ⇞
     "\u21DE": 36,
     home: 36,
+    // Insert key, or ins
     ins: 45,
     insert: 45,
+    // Delete key, on Mac: ⌦ (Delete)
     "\u2326": 46,
     del: 46,
     "delete": 46,
+    // Left Arrow Key, or ←
     "\u2190": 37,
     left: 37,
     "arrow-left": 37,
+    // Up Arrow Key, or ↑
     "\u2191": 38,
     up: 38,
     "arrow-up": 38,
+    // Right Arrow Key, or →
     "\u2192": 39,
     right: 39,
     "arrow-right": 39,
+    // Up Arrow Key, or ↓
     "\u2193": 40,
     down: 40,
     "arrow-down": 40,
+    // odities, printing characters that come out wrong:
+    // Firefox Equals
     "ffequals": 61,
+    // Num-Multiply, or *
     "*": 106,
     star: 106,
     asterisk: 106,
     multiply: 106,
+    // Num-Plus or +
     "+": 107,
     "plus": 107,
+    // Num-Subtract, or -
     "-": 109,
     subtract: 109,
+    // Vertical Bar / Pipe
     "|": 124,
+    // Firefox Plus
     "ffplus": 171,
+    // Firefox Minus
     "ffminus": 173,
+    // Semicolon
     ";": 186,
     semicolon: 186,
+    // = or equals
     "=": 187,
     "equals": 187,
+    // Comma, or ,
     ",": 188,
     comma: 188,
+    // Dash / Underscore key
     "dash": 189,
+    // Period, or ., or full-stop
     ".": 190,
     period: 190,
     "full-stop": 190,
+    // Slash, or /, or forward-slash
     "/": 191,
     slash: 191,
     "forward-slash": 191,
+    // Tick, or `, or back-quote
     "`": 192,
     tick: 192,
     "back-quote": 192,
+    // Open bracket, or [
     "[": 219,
     "open-bracket": 219,
+    // Back slash, or \
     "\\": 220,
     "back-slash": 220,
+    // Close backet, or ]
     "]": 221,
     "close-bracket": 221,
+    // Apostrophe, or Quote, or '
     "'": 222,
     quote: 222,
     apostrophe: 222
@@ -24801,7 +25406,7 @@
       }).filter(Boolean);
     };
     tiler8.getGeoJSON = function(projection2) {
-      var features2 = tiler8.getTiles(projection2).map(function(tile) {
+      var features = tiler8.getTiles(projection2).map(function(tile) {
         return {
           type: "Feature",
           properties: {
@@ -24816,7 +25421,7 @@
       });
       return {
         type: "FeatureCollection",
-        features: features2
+        features
       };
     };
     tiler8.tileSize = function(val) {
@@ -24865,10 +25470,10 @@
   }
 
   // modules/util/trigger_event.js
-  function utilTriggerEvent(target, type3) {
+  function utilTriggerEvent(target, type2) {
     target.each(function() {
       var evt = document.createEvent("HTMLEvents");
-      evt.initEvent(type3, true, true);
+      evt.initEvent(type2, true, true);
       this.dispatchEvent(evt);
     });
   }
@@ -24912,7 +25517,9 @@
         return _loadPromise;
       let filesToFetch = [
         "languages",
+        // load the list of languages
         "locales"
+        // load the list of supported locales
       ];
       const localeDirs = {
         general: "locales",
@@ -25588,7 +26195,8 @@
         }
       }
       function shouldInherit(f2) {
-        if (f2.key && _this.tags[f2.key] !== void 0 && f2.type !== "multiCombo" && f2.type !== "semiCombo" && f2.type !== "manyCombo" && f2.type !== "check")
+        if (f2.key && _this.tags[f2.key] !== void 0 && // inherit anyway if multiple values are allowed or just a checkbox
+        f2.type !== "multiCombo" && f2.type !== "semiCombo" && f2.type !== "manyCombo" && f2.type !== "check")
           return false;
         return true;
       }
@@ -25816,6 +26424,7 @@
         footway: true,
         railway: true,
         junction: true,
+        traffic_calming: true,
         type: true
       };
       let areaKeys = {};
@@ -25835,7 +26444,9 @@
         let key;
         for (key in p.addTags) {
           const value = p.addTags[key];
-          if (key in areaKeys && p.geometry.indexOf("line") !== -1 && value !== "*") {
+          if (key in areaKeys && // probably an area...
+          p.geometry.indexOf("line") !== -1 && // but sometimes a line
+          value !== "*") {
             areaKeys[key][value] = true;
           }
         }
@@ -26444,8 +27055,10 @@
         } else {
           matrix[i2][j2] = Math.min(
             matrix[i2 - 1][j2 - 1] + 1,
+            // substitution
             Math.min(
               matrix[i2][j2 - 1] + 1,
+              // insertion
               matrix[i2 - 1][j2] + 1
             )
           );
@@ -26560,6 +27173,17 @@
     }
     return ids[oldestIDIndex];
   }
+  function utilCleanOsmString(val, maxChars) {
+    if (val === void 0 || val === null) {
+      val = "";
+    } else {
+      val = val.toString();
+    }
+    val = val.trim();
+    if (val.normalize)
+      val = val.normalize("NFC");
+    return utilUnicodeCharsTruncated(val, maxChars);
+  }
 
   // modules/osm/entity.js
   function osmEntity(attrs) {
@@ -26572,8 +27196,8 @@
     }
     return new osmEntity().initialize(arguments);
   }
-  osmEntity.id = function(type3) {
-    return osmEntity.id.fromOSM(type3, osmEntity.id.next[type3]--);
+  osmEntity.id = function(type2) {
+    return osmEntity.id.fromOSM(type2, osmEntity.id.next[type2]--);
   };
   osmEntity.id.next = {
     changeset: -1,
@@ -26581,8 +27205,8 @@
     way: -1,
     relation: -1
   };
-  osmEntity.id.fromOSM = function(type3, id2) {
-    return type3[0] + id2;
+  osmEntity.id.fromOSM = function(type2, id2) {
+    return type2[0] + id2;
   };
   osmEntity.id.toOSM = function(id2) {
     var match = id2.match(/^[cnwr](-?\d+)$/);
@@ -26682,6 +27306,7 @@
           merged[k] = utilUnicodeCharsTruncated(
             utilArrayUnion(t1.split(/;\s*/), t2.split(/;\s*/)).join(";"),
             255
+            // avoid exceeding character limit; see also context.maxCharsForTagValue()
           );
         }
       }
@@ -27073,9 +27698,11 @@
         return -10;
       return 0;
     },
+    // the approximate width of the line based on its tags except its `width` tag
     impliedLineWidthMeters: function() {
       var averageWidths = {
         highway: {
+          // width is for single lane
           motorway: 5,
           motorway_link: 5,
           trunk: 4.5,
@@ -27102,6 +27729,7 @@
           footway: 1.5
         },
         railway: {
+          // width includes ties and rail bed, not just track gauge
           rail: 2.5,
           light_rail: 2.5,
           tram: 2.5,
@@ -27157,6 +27785,9 @@
       }
       return false;
     },
+    // Some identifier for tag that implies that this way is "sided",
+    // i.e. the right side is the 'inside' (e.g. the right side of a
+    // natural=cliff is lower).
     sidednessIdentifier: function() {
       for (var key in this.tags) {
         var value = this.tags[key];
@@ -27206,6 +27837,7 @@
       }
       return true;
     },
+    // returns an object with the tag that implies this is an area, if any
     tagSuggestingArea: function() {
       return osmTagSuggestingArea(this.tags);
     },
@@ -27235,6 +27867,7 @@
         return this.isArea() ? "area" : "line";
       });
     },
+    // returns an array of objects representing the segments between the nodes in this way
     segments: function(graph) {
       function segmentExtent(graph2) {
         var n1 = graph2.hasEntity(this.nodes[0]);
@@ -27264,6 +27897,7 @@
         return segments;
       });
     },
+    // If this way is not closed, append the beginning node to the end of the nodelist to close it.
     close: function() {
       if (this.isClosed() || !this.nodes.length)
         return this;
@@ -27272,6 +27906,7 @@
       nodes.push(nodes[0]);
       return this.update({ nodes });
     },
+    // If this way is closed, remove any connector nodes from the end of the nodelist to unclose it.
     unclose: function() {
       if (!this.isClosed())
         return this;
@@ -27285,6 +27920,11 @@
       nodes = nodes.filter(noRepeatNodes);
       return this.update({ nodes });
     },
+    // Adds a node (id) in front of the node which is currently at position index.
+    // If index is undefined, the node will be added to the end of the way for linear ways,
+    //   or just before the final connecting node for circular ways.
+    // Consecutive duplicates are eliminated including existing ones.
+    // Circularity is always preserved when adding a node.
     addNode: function(id2, index) {
       var nodes = this.nodes.slice();
       var isClosed = this.isClosed();
@@ -27318,6 +27958,9 @@
       }
       return this.update({ nodes });
     },
+    // Replaces the node which is currently at position index with the given node (id).
+    // Consecutive duplicates are eliminated including existing ones.
+    // Circularity is preserved when updating a node.
     updateNode: function(id2, index) {
       var nodes = this.nodes.slice();
       var isClosed = this.isClosed();
@@ -27348,6 +27991,9 @@
       }
       return this.update({ nodes });
     },
+    // Replaces each occurrence of node id needle with replacement.
+    // Consecutive duplicates are eliminated including existing ones.
+    // Circularity is preserved.
     replaceNode: function(needleID, replacementID) {
       var nodes = this.nodes.slice();
       var isClosed = this.isClosed();
@@ -27362,6 +28008,9 @@
       }
       return this.update({ nodes });
     },
+    // Removes each occurrence of node id.
+    // Consecutive duplicates are eliminated including existing ones.
+    // Circularity is preserved.
     removeNode: function(id2) {
       var nodes = this.nodes.slice();
       var isClosed = this.isClosed();
@@ -27747,7 +28396,9 @@
         if (newPreset.addTags) {
           preserveKeys = preserveKeys.concat(Object.keys(newPreset.addTags));
         }
-        newPreset.fields().concat(newPreset.moreFields()).filter((f2) => f2.matchGeometry(geometry)).map((f2) => f2.key).filter(Boolean).forEach((key) => preserveKeys.push(key));
+        if (oldPreset && !oldPreset.id.startsWith(newPreset.id)) {
+          newPreset.fields().concat(newPreset.moreFields()).filter((f2) => f2.matchGeometry(geometry)).map((f2) => f2.key).filter(Boolean).forEach((key) => preserveKeys.push(key));
+        }
       }
       if (oldPreset)
         tags = oldPreset.unsetTags(tags, geometry, preserveKeys);
@@ -27826,6 +28477,7 @@
     isDegenerate: function() {
       return !(Array.isArray(this.loc) && this.loc.length === 2 && this.loc[0] >= -180 && this.loc[0] <= 180 && this.loc[1] >= -90 && this.loc[1] <= 90);
     },
+    // Inspect tags and geometry to determine which direction(s) this node/vertex points
     directions: function(resolver, projection2) {
       var val;
       var i2;
@@ -28777,12 +29429,17 @@
           return;
         var multipolygon = multipolygons[0];
         for (var key in survivor.tags) {
-          if (multipolygon.tags[key] && multipolygon.tags[key] !== survivor.tags[key])
+          if (multipolygon.tags[key] && // don't collapse if tags cannot be cleanly merged
+          multipolygon.tags[key] !== survivor.tags[key])
             return;
         }
         survivor = survivor.mergeTags(multipolygon.tags);
         graph = graph.replace(survivor);
-        graph = actionDeleteRelation(multipolygon.id, true)(graph);
+        graph = actionDeleteRelation(
+          multipolygon.id,
+          true
+          /* allow untagged members */
+        )(graph);
         var tags = Object.assign({}, survivor.tags);
         if (survivor.geometry(graph) !== "area") {
           tags.area = "yes";
@@ -29036,6 +29693,8 @@
         }
       };
     },
+    // Generate [osmChange](http://wiki.openstreetmap.org/wiki/OsmChange)
+    // XML. Returns a string.
     osmChangeJXON: function(changes) {
       var changeset_id = this.id;
       function nest(x, order) {
@@ -29206,6 +29865,8 @@
     isDegenerate: function() {
       return this.members.length === 0;
     },
+    // Return an array of members, each extended with an 'index' property whose value
+    // is the member index.
     indexedMembers: function() {
       var result = new Array(this.members.length);
       for (var i2 = 0; i2 < this.members.length; i2++) {
@@ -29213,6 +29874,8 @@
       }
       return result;
     },
+    // Return the first member with the given role. A copy of the member object
+    // is returned, extended with an 'index' property whose value is the member index.
     memberByRole: function(role) {
       for (var i2 = 0; i2 < this.members.length; i2++) {
         if (this.members[i2].role === role) {
@@ -29220,6 +29883,7 @@
         }
       }
     },
+    // Same as memberByRole, but returns all members with the given role
     membersByRole: function(role) {
       var result = [];
       for (var i2 = 0; i2 < this.members.length; i2++) {
@@ -29229,6 +29893,8 @@
       }
       return result;
     },
+    // Return the first member with the given id. A copy of the member object
+    // is returned, extended with an 'index' property whose value is the member index.
     memberById: function(id2) {
       for (var i2 = 0; i2 < this.members.length; i2++) {
         if (this.members[i2].id === id2) {
@@ -29236,6 +29902,8 @@
         }
       }
     },
+    // Return the first member with the given id and role. A copy of the member object
+    // is returned, extended with an 'index' property whose value is the member index.
     memberByIdAndRole: function(id2, role) {
       for (var i2 = 0; i2 < this.members.length; i2++) {
         if (this.members[i2].id === id2 && this.members[i2].role === role) {
@@ -29269,6 +29937,10 @@
       members.splice(toIndex, 0, members.splice(fromIndex, 1)[0]);
       return this.update({ members });
     },
+    // Wherever a member appears with id `needle.id`, replace it with a member
+    // with id `replacement.id`, type `replacement.type`, and the original role,
+    // By default, adding a duplicate member (by id and role) is prevented.
+    // Return an updated relation.
     replaceMember: function(needle, replacement, keepDuplicates) {
       if (!this.memberById(needle.id))
         return this;
@@ -29388,6 +30060,16 @@
     isConnectivity: function() {
       return !!(this.tags.type && this.tags.type.match(/^connectivity:?/));
     },
+    // Returns an array [A0, ... An], each Ai being an array of node arrays [Nds0, ... Ndsm],
+    // where Nds0 is an outer ring and subsequent Ndsi's (if any i > 0) being inner rings.
+    //
+    // This corresponds to the structure needed for rendering a multipolygon path using a
+    // `evenodd` fill rule, as well as the structure of a GeoJSON MultiPolygon geometry.
+    //
+    // In the case of invalid geometries, this function will still return a result which
+    // includes the nodes of all way members, but some Nds may be unclosed and some inner
+    // rings not matched with the intended outer ring.
+    //
     multipolygon: function(resolver) {
       var outers = this.members.filter(function(m) {
         return "outer" === (m.role || "outer");
@@ -29462,6 +30144,7 @@
       this.id = id2;
       return this;
     }
+    // Generic handling for newly created QAItems
     static id() {
       return this.nextId--;
     }
@@ -29554,8 +30237,11 @@
         wayB = wayB.update({ nodes: nodesB });
       }
       if (wayA.tags.step_count) {
-        var stepCount = parseFloat(wayA.tags.step_count);
-        if (stepCount && isFinite(stepCount) && stepCount > 0 && Math.round(stepCount) === stepCount) {
+        var stepCount = Number(wayA.tags.step_count);
+        if (stepCount && // ensure a number
+        isFinite(stepCount) && // ensure positive
+        stepCount > 0 && // ensure integer
+        Math.round(stepCount) === stepCount) {
           var tagsA = Object.assign({}, wayA.tags);
           var tagsB = Object.assign({}, wayB.tags);
           var ratioA = lengthA / (lengthA + lengthB);
@@ -29811,6 +30497,10 @@
         "parentRels": Object.getPrototypeOf(this._parentRels)
       };
     },
+    // Unlike other graph methods, rebase mutates in place. This is because it
+    // is used only during the history operation that merges newly downloaded
+    // data into each state. To external consumers, it should appear as if the
+    // graph always contained the newly downloaded data.
     rebase: function(entities, stack, force) {
       var base = this.base();
       var i2, j2, k, id2;
@@ -29858,12 +30548,13 @@
       }, this);
       this.transients = {};
     },
+    // Updates calculated properties (parentWays, parentRels) for the specified change
     _updateCalculated: function(oldentity, entity, parentWays, parentRels) {
       parentWays = parentWays || this._parentWays;
       parentRels = parentRels || this._parentRels;
-      var type3 = entity && entity.type || oldentity && oldentity.type;
+      var type2 = entity && entity.type || oldentity && oldentity.type;
       var removed, added, i2;
-      if (type3 === "way") {
+      if (type2 === "way") {
         if (oldentity && entity) {
           removed = utilArrayDifference(oldentity.nodes, entity.nodes);
           added = utilArrayDifference(entity.nodes, oldentity.nodes);
@@ -29882,7 +30573,7 @@
           parentWays[added[i2]] = new Set(parentWays[added[i2]]);
           parentWays[added[i2]].add(entity.id);
         }
-      } else if (type3 === "relation") {
+      } else if (type2 === "relation") {
         var oldentityMemberIDs = oldentity ? oldentity.members.map(function(m) {
           return m.id;
         }) : [];
@@ -29942,6 +30633,7 @@
         graph.frozen = true;
       return graph;
     },
+    // Obliterates any existing entities
     load: function(entities) {
       var base = this.base();
       this.entities = Object.create(base.entities);
@@ -30332,10 +31024,13 @@
           if (!entity.__via)
             return;
         }
-        if (!entity.__oneWay && keyVertexIds.indexOf(n1.id) !== -1 && currPath.indexOf(n1.id) === -1) {
+        if (!entity.__oneWay && // bidirectional..
+        keyVertexIds.indexOf(n1.id) !== -1 && // key vertex..
+        currPath.indexOf(n1.id) === -1) {
           nextNodes.push(n1);
         }
-        if (keyVertexIds.indexOf(n2.id) !== -1 && currPath.indexOf(n2.id) === -1) {
+        if (keyVertexIds.indexOf(n2.id) !== -1 && // key vertex..
+        currPath.indexOf(n2.id) === -1) {
           nextNodes.push(n2);
         }
         nextNodes.forEach(function(nextNode) {
@@ -30654,8 +31349,11 @@
         ab,
         oStart: h.buffer1[0],
         oLength: h.buffer1[1],
+        // length of o to remove
         abStart: h.buffer2[0],
         abLength: h.buffer2[1]
+        // length of a/b to insert
+        // abContent: (ab === 'a' ? a : b).slice(h.buffer2[0], h.buffer2[0] + h.buffer2[1])
       });
     }
     diffIndices(o, a).forEach((item) => addHunk(item, "a"));
@@ -31756,7 +32454,8 @@
       var keepingAllNodes = nodes.every(function(node, i3) {
         return i3 === 0 || i3 === nodes.length - 1 || shouldKeepNode(node, graph);
       });
-      if (maxDistance < 1e-4 && keepingAllNodes) {
+      if (maxDistance < 1e-4 && // Allow straightening even if already straight in order to remove extraneous nodes
+      keepingAllNodes) {
         return "straight_enough";
       }
     };
@@ -32181,7 +32880,8 @@
         _disableSpace = false;
         select_default2(window).on("keyup.space-block", null);
       });
-      var loc = context.map().mouse() || context.projection(context.map().center());
+      var loc = context.map().mouse() || // or the map center if the mouse has never entered the map
+      context.projection(context.map().center());
       click(d3_event, loc);
     }
     function backspace(d3_event) {
@@ -32491,19 +33191,19 @@
     var group = locale2.grouping === void 0 || locale2.thousands === void 0 ? identity_default3 : formatGroup_default(map.call(locale2.grouping, Number), locale2.thousands + ""), currencyPrefix = locale2.currency === void 0 ? "" : locale2.currency[0] + "", currencySuffix = locale2.currency === void 0 ? "" : locale2.currency[1] + "", decimal = locale2.decimal === void 0 ? "." : locale2.decimal + "", numerals = locale2.numerals === void 0 ? identity_default3 : formatNumerals_default(map.call(locale2.numerals, String)), percent = locale2.percent === void 0 ? "%" : locale2.percent + "", minus = locale2.minus === void 0 ? "\u2212" : locale2.minus + "", nan = locale2.nan === void 0 ? "NaN" : locale2.nan + "";
     function newFormat(specifier) {
       specifier = formatSpecifier(specifier);
-      var fill = specifier.fill, align = specifier.align, sign2 = specifier.sign, symbol = specifier.symbol, zero3 = specifier.zero, width = specifier.width, comma = specifier.comma, precision2 = specifier.precision, trim = specifier.trim, type3 = specifier.type;
-      if (type3 === "n")
-        comma = true, type3 = "g";
-      else if (!formatTypes_default[type3])
-        precision2 === void 0 && (precision2 = 12), trim = true, type3 = "g";
+      var fill = specifier.fill, align = specifier.align, sign2 = specifier.sign, symbol = specifier.symbol, zero3 = specifier.zero, width = specifier.width, comma = specifier.comma, precision2 = specifier.precision, trim = specifier.trim, type2 = specifier.type;
+      if (type2 === "n")
+        comma = true, type2 = "g";
+      else if (!formatTypes_default[type2])
+        precision2 === void 0 && (precision2 = 12), trim = true, type2 = "g";
       if (zero3 || fill === "0" && align === "=")
         zero3 = true, fill = "0", align = "=";
-      var prefix = symbol === "$" ? currencyPrefix : symbol === "#" && /[boxX]/.test(type3) ? "0" + type3.toLowerCase() : "", suffix = symbol === "$" ? currencySuffix : /[%p]/.test(type3) ? percent : "";
-      var formatType = formatTypes_default[type3], maybeSuffix = /[defgprs%]/.test(type3);
-      precision2 = precision2 === void 0 ? 6 : /[gprs]/.test(type3) ? Math.max(1, Math.min(21, precision2)) : Math.max(0, Math.min(20, precision2));
+      var prefix = symbol === "$" ? currencyPrefix : symbol === "#" && /[boxX]/.test(type2) ? "0" + type2.toLowerCase() : "", suffix = symbol === "$" ? currencySuffix : /[%p]/.test(type2) ? percent : "";
+      var formatType = formatTypes_default[type2], maybeSuffix = /[defgprs%]/.test(type2);
+      precision2 = precision2 === void 0 ? 6 : /[gprs]/.test(type2) ? Math.max(1, Math.min(21, precision2)) : Math.max(0, Math.min(20, precision2));
       function format2(value) {
         var valuePrefix = prefix, valueSuffix = suffix, i2, n2, c;
-        if (type3 === "c") {
+        if (type2 === "c") {
           valueSuffix = formatType(value) + valueSuffix;
           value = "";
         } else {
@@ -32515,7 +33215,7 @@
           if (valueNegative && +value === 0 && sign2 !== "+")
             valueNegative = false;
           valuePrefix = (valueNegative ? sign2 === "(" ? sign2 : minus : sign2 === "-" || sign2 === "(" ? "" : sign2) + valuePrefix;
-          valueSuffix = (type3 === "s" ? prefixes[8 + prefixExponent / 3] : "") + valueSuffix + (valueNegative && sign2 === "(" ? ")" : "");
+          valueSuffix = (type2 === "s" ? prefixes[8 + prefixExponent / 3] : "") + valueSuffix + (valueNegative && sign2 === "(" ? ")" : "");
           if (maybeSuffix) {
             i2 = -1, n2 = value.length;
             while (++i2 < n2) {
@@ -32729,8 +33429,8 @@
     var _done = false;
     var _timer;
     function ratchetyInterpolator(a, b, steps2, units) {
-      a = parseFloat(a);
-      b = parseFloat(b);
+      a = Number(a);
+      b = Number(b);
       var sample = quantize().domain([0, 1]).range(quantize_default(number_default(a, b), steps2));
       return function(t) {
         return String(sample(t)) + (units || "");
@@ -32777,11 +33477,11 @@
         var opacity;
         var width;
         if (tag === "circle") {
-          opacity = parseFloat(s.style("fill-opacity") || 0.5);
-          width = parseFloat(s.style("r") || 15.5);
+          opacity = Number(s.style("fill-opacity") || 0.5);
+          width = Number(s.style("r") || 15.5);
         } else {
-          opacity = parseFloat(s.style("stroke-opacity") || 0.7);
-          width = parseFloat(s.style("stroke-width") || 10);
+          opacity = Number(s.style("stroke-opacity") || 0.7);
+          width = Number(s.style("stroke-width") || 10);
         }
         p.tag = tag;
         p.from.opacity = opacity * 0.6;
@@ -33118,9 +33818,9 @@
         var parents = context.graph().parentRelations(entity);
         for (var i2 = 0; i2 < parents.length; i2++) {
           var parent = parents[i2];
-          var type3 = parent.tags.type;
+          var type2 = parent.tags.type;
           var role = parent.memberById(id2).role || "outer";
-          if (type3 === "route" || type3 === "boundary" || type3 === "multipolygon" && role === "outer") {
+          if (type2 === "route" || type2 === "boundary" || type2 === "multipolygon" && role === "outer") {
             return true;
           }
         }
@@ -34234,8 +34934,8 @@
   }
 
   // node_modules/d3-fetch/src/xml.js
-  function parser(type3) {
-    return (input, init2) => text_default3(input, init2).then((text2) => new DOMParser().parseFromString(text2, type3));
+  function parser(type2) {
+    return (input, init2) => text_default3(input, init2).then((text2) => new DOMParser().parseFromString(text2, type2));
   }
   var xml_default = parser("application/xml");
   var html = parser("text/html");
@@ -34249,6 +34949,7 @@
   var _krData = { errorTypes: {}, localizeStrings: {} };
   var _cache;
   var _krRuleset = [
+    // no 20 - multiple node on same spot - these are mostly boundaries overlapping roads
     30,
     40,
     50,
@@ -34501,6 +35202,7 @@
         rtree: new import_rbush.default()
       };
     },
+    // KeepRight API:  http://osm.mueschelsoft.de/keepright/interfacing.php
     loadIssues(projection2) {
       const options2 = {
         format: "geojson",
@@ -34627,6 +35329,7 @@
           callback(null, d);
       });
     },
+    // Get all cached QAItems covering the viewport
     getItems(projection2) {
       const viewport = projection2.clipExtent();
       const min3 = [viewport[0][0], viewport[1][1]];
@@ -34634,9 +35337,12 @@
       const bbox2 = geoExtent(projection2.invert(min3), projection2.invert(max3)).bbox();
       return _cache.rtree.search(bbox2).map((d) => d.data);
     },
+    // Get a QAItem from cache
+    // NOTE: Don't change method name until UI v3 is merged
     getError(id2) {
       return _cache.data[id2];
     },
+    // Replace a single QAItem in the cache
     replaceItem(item) {
       if (!(item instanceof QAItem) || !item.id)
         return;
@@ -34644,6 +35350,7 @@
       updateRtree(encodeIssueRtree(item), true);
       return item;
     },
+    // Remove a single QAItem from the cache
     removeItem(item) {
       if (!(item instanceof QAItem) || !item.id)
         return;
@@ -34653,6 +35360,8 @@
     issueURL(item) {
       return `${_krUrlRoot}/report_map.php?schema=${item.schema}&error=${item.id}`;
     },
+    // Get an array of issues closed during this session.
+    // Used to populate `closed:keepright` changeset tag
     getClosedIDs() {
       return Object.keys(_cache.closed).sort();
     }
@@ -34771,6 +35480,7 @@
         client: "iD",
         status: "OPEN",
         zoom: "19"
+        // Use a high zoom so that clusters aren't returned
       };
       const tiles = tiler2.zoomExtent([_tileZoom2, _tileZoom2]).getTiles(projection2);
       abortUnwantedRequests2(_cache2, tiles);
@@ -34810,7 +35520,9 @@
                 loc = preventCoincident(loc, false);
                 let d = new QAItem(loc, this, k, itemId, {
                   issueKey: k,
+                  // used as a category
                   identifier: {
+                    // used to post changes
                     wayId,
                     fromNodeId,
                     toNodeId
@@ -34831,8 +35543,8 @@
             }
             if (data.tiles) {
               data.tiles.forEach((feature3) => {
-                const { type: type3, x, y, numberOfTrips } = feature3;
-                const geoType = type3.toLowerCase();
+                const { type: type2, x, y, numberOfTrips } = feature3;
+                const geoType = type2.toLowerCase();
                 const itemId = `${geoType}${x}${y}${numberOfTrips}`;
                 let loc = pointAverage(feature3.points);
                 loc = preventCoincident(loc, false);
@@ -34978,6 +35690,7 @@
         });
       }
     },
+    // Get all cached QAItems covering the viewport
     getItems(projection2) {
       const viewport = projection2.clipExtent();
       const min3 = [viewport[0][0], viewport[1][1]];
@@ -34985,12 +35698,16 @@
       const bbox2 = geoExtent(projection2.invert(min3), projection2.invert(max3)).bbox();
       return _cache2.rtree.search(bbox2).map((d) => d.data);
     },
+    // Get a QAItem from cache
+    // NOTE: Don't change method name until UI v3 is merged
     getError(id2) {
       return _cache2.data[id2];
     },
+    // get the name of the icon to display for this item
     getIcon(itemType) {
       return _impOsmData.icons[itemType];
     },
+    // Replace a single QAItem in the cache
     replaceItem(issue) {
       if (!(issue instanceof QAItem) || !issue.id)
         return;
@@ -34998,12 +35715,14 @@
       updateRtree2(encodeIssueRtree2(issue), true);
       return issue;
     },
+    // Remove a single QAItem from the cache
     removeItem(issue) {
       if (!(issue instanceof QAItem) || !issue.id)
         return;
       delete _cache2.data[issue.id];
       updateRtree2(encodeIssueRtree2(issue), false);
     },
+    // Used to populate `closed:improveosm:*` changeset tags
     getClosedCounts() {
       return _cache2.closed;
     }
@@ -35892,6 +36611,8 @@
     def: /^ {0,3}\[(label)\]: *(?:\n *)?<?([^\s>]+)>?(?:(?: +(?:\n *)?| *\n *)(title))? *(?:\n+|$)/,
     table: noopTest,
     lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
+    // regex template, placeholders will be replaced according to different paragraph
+    // interruption rules of commonmark and the original markdown spec:
     _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html|table| +\n)[^\n]+)*)/,
     text: /^[^\n]+/
   };
@@ -35909,6 +36630,7 @@
   block.normal = merge2({}, block);
   block.gfm = merge2({}, block.normal, {
     table: "^ *([^\\n ].*\\|.*)\\n {0,3}(?:\\| *)?(:?-+:? *(?:\\| *:?-+:? *)*)(?:\\| *)?(?:\\n((?:(?! *\\n|hr|heading|blockquote|code|fences|list|html).*(?:\\n|$))*)\\n*|$)"
+    // Cells
   });
   block.gfm.table = edit(block.gfm.table).replace("hr", block.hr).replace("heading", " {0,3}#{1,6} ").replace("blockquote", " {0,3}>").replace("code", " {4}[^\\n]").replace("fences", " {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n").replace("list", " {0,3}(?:[*+-]|1[.)]) ").replace("html", "</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|textarea|!--)").replace("tag", block._tag).getRegex();
   block.gfm.paragraph = edit(block._paragraph).replace("hr", block.hr).replace("heading", " {0,3}#{1,6} ").replace("|lheading", "").replace("table", block.gfm.table).replace("blockquote", " {0,3}>").replace("fences", " {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n").replace("list", " {0,3}(?:[*+-]|1[.)]) ").replace("html", "</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|textarea|!--)").replace("tag", block._tag).getRegex();
@@ -35919,6 +36641,7 @@
     def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,
     heading: /^(#{1,6})(.*)(?:\n+|$)/,
     fences: noopTest,
+    // fences not supported
     paragraph: edit(block.normal._paragraph).replace("hr", block.hr).replace("heading", " *#{1,6} *[^\n]").replace("lheading", block.lheading).replace("blockquote", " {0,3}>").replace("|fences", "").replace("|list", "").replace("|html", "").getRegex()
   });
   var inline = {
@@ -35926,14 +36649,18 @@
     autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
     url: noopTest,
     tag: "^comment|^</[a-zA-Z][\\w:-]*\\s*>|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>|^<\\?[\\s\\S]*?\\?>|^<![a-zA-Z]+\\s[\\s\\S]*?>|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>",
+    // CDATA section
     link: /^!?\[(label)\]\(\s*(href)(?:\s+(title))?\s*\)/,
     reflink: /^!?\[(label)\]\[(ref)\]/,
     nolink: /^!?\[(ref)\](?:\[\])?/,
     reflinkSearch: "reflink|nolink(?!\\()",
     emStrong: {
       lDelim: /^(?:\*+(?:([punct_])|[^\s*]))|^_+(?:([punct*])|([^\s_]))/,
+      //        (1) and (2) can only be a Right Delimiter. (3) and (4) can only be Left.  (5) and (6) can be either Left or Right.
+      //          () Skip orphan inside strong                                      () Consume to delim     (1) #***                (2) a***#, a***                             (3) #***a, ***a                 (4) ***#              (5) #***#                 (6) a***a
       rDelimAst: /^(?:[^_*\\]|\\.)*?\_\_(?:[^_*\\]|\\.)*?\*(?:[^_*\\]|\\.)*?(?=\_\_)|(?:[^*\\]|\\.)+(?=[^*])|[punct_](\*+)(?=[\s]|$)|(?:[^punct*_\s\\]|\\.)(\*+)(?=[punct_\s]|$)|[punct_\s](\*+)(?=[^punct*_\s])|[\s](\*+)(?=[punct_])|[punct_](\*+)(?=[punct_])|(?:[^punct*_\s\\]|\\.)(\*+)(?=[^punct*_\s])/,
       rDelimUnd: /^(?:[^_*\\]|\\.)*?\*\*(?:[^_*\\]|\\.)*?\_(?:[^_*\\]|\\.)*?(?=\*\*)|(?:[^_\\]|\\.)+(?=[^_])|[punct*](\_+)(?=[\s]|$)|(?:[^punct*_\s\\]|\\.)(\_+)(?=[punct*\s]|$)|[punct*\s](\_+)(?=[^punct*_\s])|[\s](\_+)(?=[punct*])|[punct*](\_+)(?=[punct*])/
+      // ^- Not allowed for _
     },
     code: /^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,
     br: /^( {2,}|\\)\n(?!\s*$)/,
@@ -36039,20 +36766,32 @@
       }
       this.tokenizer.rules = rules;
     }
+    /**
+     * Expose Rules
+     */
     static get rules() {
       return {
         block,
         inline
       };
     }
+    /**
+     * Static Lex Method
+     */
     static lex(src, options2) {
       const lexer2 = new Lexer(options2);
       return lexer2.lex(src);
     }
+    /**
+     * Static Lex Inline Method
+     */
     static lexInline(src, options2) {
       const lexer2 = new Lexer(options2);
       return lexer2.inlineTokens(src);
     }
+    /**
+     * Preprocessing
+     */
     lex(src) {
       src = src.replace(/\r\n|\r/g, "\n");
       this.blockTokens(src, this.tokens);
@@ -36062,6 +36801,9 @@
       }
       return this.tokens;
     }
+    /**
+     * Lexing
+     */
     blockTokens(src, tokens = []) {
       if (this.options.pedantic) {
         src = src.replace(/\t/g, "    ").replace(/^ +$/gm, "");
@@ -36217,6 +36959,9 @@
       this.inlineQueue.push({ src, tokens });
       return tokens;
     }
+    /**
+     * Lexing/Compiling
+     */
     inlineTokens(src, tokens = []) {
       let token, lastToken, cutSrc;
       let maskedSrc = src;
@@ -36378,6 +37123,9 @@
       }
       return '<pre><code class="' + this.options.langPrefix + escape4(lang, true) + '">' + (escaped ? code : escape4(code, true)) + "</code></pre>\n";
     }
+    /**
+     * @param {string} quote
+     */
     blockquote(quote2) {
       return `<blockquote>
 ${quote2}</blockquote>
@@ -36386,6 +37134,12 @@ ${quote2}</blockquote>
     html(html2) {
       return html2;
     }
+    /**
+     * @param {string} text
+     * @param {string} level
+     * @param {string} raw
+     * @param {any} slugger
+     */
     heading(text2, level, raw, slugger) {
       if (this.options.headerIds) {
         const id2 = this.options.headerPrefix + slugger.slug(raw);
@@ -36399,9 +37153,12 @@ ${quote2}</blockquote>
       return this.options.xhtml ? "<hr/>\n" : "<hr>\n";
     }
     list(body, ordered, start2) {
-      const type3 = ordered ? "ol" : "ul", startatt = ordered && start2 !== 1 ? ' start="' + start2 + '"' : "";
-      return "<" + type3 + startatt + ">\n" + body + "</" + type3 + ">\n";
+      const type2 = ordered ? "ol" : "ul", startatt = ordered && start2 !== 1 ? ' start="' + start2 + '"' : "";
+      return "<" + type2 + startatt + ">\n" + body + "</" + type2 + ">\n";
     }
+    /**
+     * @param {string} text
+     */
     listitem(text2) {
       return `<li>${text2}</li>
 `;
@@ -36409,41 +37166,69 @@ ${quote2}</blockquote>
     checkbox(checked) {
       return "<input " + (checked ? 'checked="" ' : "") + 'disabled="" type="checkbox"' + (this.options.xhtml ? " /" : "") + "> ";
     }
+    /**
+     * @param {string} text
+     */
     paragraph(text2) {
       return `<p>${text2}</p>
 `;
     }
+    /**
+     * @param {string} header
+     * @param {string} body
+     */
     table(header, body) {
       if (body)
         body = `<tbody>${body}</tbody>`;
       return "<table>\n<thead>\n" + header + "</thead>\n" + body + "</table>\n";
     }
+    /**
+     * @param {string} content
+     */
     tablerow(content) {
       return `<tr>
 ${content}</tr>
 `;
     }
     tablecell(content, flags) {
-      const type3 = flags.header ? "th" : "td";
-      const tag = flags.align ? `<${type3} align="${flags.align}">` : `<${type3}>`;
-      return tag + content + `</${type3}>
+      const type2 = flags.header ? "th" : "td";
+      const tag = flags.align ? `<${type2} align="${flags.align}">` : `<${type2}>`;
+      return tag + content + `</${type2}>
 `;
     }
+    /**
+     * span level renderer
+     * @param {string} text
+     */
     strong(text2) {
       return `<strong>${text2}</strong>`;
     }
+    /**
+     * @param {string} text
+     */
     em(text2) {
       return `<em>${text2}</em>`;
     }
+    /**
+     * @param {string} text
+     */
     codespan(text2) {
       return `<code>${text2}</code>`;
     }
     br() {
       return this.options.xhtml ? "<br/>" : "<br>";
     }
+    /**
+     * @param {string} text
+     */
     del(text2) {
       return `<del>${text2}</del>`;
     }
+    /**
+     * @param {string} href
+     * @param {string} title
+     * @param {string} text
+     */
     link(href, title, text2) {
       href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
       if (href === null) {
@@ -36456,6 +37241,11 @@ ${content}</tr>
       out += ">" + text2 + "</a>";
       return out;
     }
+    /**
+     * @param {string} href
+     * @param {string} title
+     * @param {string} text
+     */
     image(href, title, text2) {
       href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
       if (href === null) {
@@ -36473,6 +37263,7 @@ ${content}</tr>
     }
   };
   var TextRenderer = class {
+    // no need for block level renderers
     strong(text2) {
       return text2;
     }
@@ -36505,9 +37296,17 @@ ${content}</tr>
     constructor() {
       this.seen = {};
     }
+    /**
+     * @param {string} value
+     */
     serialize(value) {
       return value.toLowerCase().trim().replace(/<[!\/a-z].*?>/ig, "").replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g, "").replace(/\s/g, "-");
     }
+    /**
+     * Finds the next safe (unique) slug to use
+     * @param {string} originalSlug
+     * @param {boolean} isDryRun
+     */
     getNextSafeSlug(originalSlug, isDryRun) {
       let slug = originalSlug;
       let occurenceAccumulator = 0;
@@ -36524,6 +37323,12 @@ ${content}</tr>
       }
       return slug;
     }
+    /**
+     * Convert string to unique id
+     * @param {object} [options]
+     * @param {boolean} [options.dryrun] Generates the next unique slug without
+     * updating the internal accumulator.
+     */
     slug(value, options2 = {}) {
       const slug = this.serialize(value);
       return this.getNextSafeSlug(slug, options2.dryrun);
@@ -36538,14 +37343,23 @@ ${content}</tr>
       this.textRenderer = new TextRenderer();
       this.slugger = new Slugger();
     }
+    /**
+     * Static Parse Method
+     */
     static parse(tokens, options2) {
       const parser3 = new Parser(options2);
       return parser3.parse(tokens);
     }
+    /**
+     * Static Parse Inline Method
+     */
     static parseInline(tokens, options2) {
       const parser3 = new Parser(options2);
       return parser3.parseInline(tokens);
     }
+    /**
+     * Parse Loop
+     */
     parse(tokens, top = true) {
       let out = "", i2, j2, k, l2, l3, row, cell, header, body, token, ordered, start2, loose, itemBody, item, checked, task, checkbox, ret;
       const l = tokens.length;
@@ -36681,6 +37495,9 @@ ${content}</tr>
       }
       return out;
     }
+    /**
+     * Parse Inline Tokens
+     */
     parseInline(tokens, renderer) {
       renderer = renderer || this.renderer;
       let out = "", i2, token, ret;
@@ -37092,6 +37909,8 @@ ${content}</tr>
     },
     loadIssues(projection2) {
       let params = {
+        // Tiles return a maximum # of issues
+        // So we want to filter our request for only types iD supports
         item: _osmoseData.items
       };
       let tiles = tiler3.zoomExtent([_tileZoom3, _tileZoom3]).getTiles(projection2);
@@ -37213,6 +38032,7 @@ ${content}</tr>
           callback(err.message);
       });
     },
+    // Get all cached QAItems covering the viewport
     getItems(projection2) {
       const viewport = projection2.clipExtent();
       const min3 = [viewport[0][0], viewport[1][1]];
@@ -37220,12 +38040,16 @@ ${content}</tr>
       const bbox2 = geoExtent(projection2.invert(min3), projection2.invert(max3)).bbox();
       return _cache3.rtree.search(bbox2).map((d) => d.data);
     },
+    // Get a QAItem from cache
+    // NOTE: Don't change method name until UI v3 is merged
     getError(id2) {
       return _cache3.data[id2];
     },
+    // get the name of the icon to display for this item
     getIcon(itemType) {
       return _osmoseData.icons[itemType];
     },
+    // Replace a single QAItem in the cache
     replaceItem(item) {
       if (!(item instanceof QAItem) || !item.id)
         return;
@@ -37233,12 +38057,14 @@ ${content}</tr>
       updateRtree3(encodeIssueRtree3(item), true);
       return item;
     },
+    // Remove a single QAItem from the cache
     removeItem(item) {
       if (!(item instanceof QAItem) || !item.id)
         return;
       delete _cache3.data[item.id];
       updateRtree3(encodeIssueRtree3(item), false);
     },
+    // Used to populate `closed:osmose:*` changeset tags
     getClosedCounts() {
       return _cache3.closed;
     },
@@ -37311,9 +38137,9 @@ ${content}</tr>
   }
   function loadTileDataToCache(data, tile, which) {
     const vectorTile = new import_vector_tile.VectorTile(new import_pbf.default(data));
-    let features2, cache, layer, i2, feature3, loc, d;
+    let features, cache, layer, i2, feature3, loc, d;
     if (vectorTile.layers.hasOwnProperty("image")) {
-      features2 = [];
+      features = [];
       cache = _mlyCache.images;
       layer = vectorTile.layers.image;
       for (i2 = 0; i2 < layer.length; i2++) {
@@ -37328,7 +38154,7 @@ ${content}</tr>
           sequence_id: feature3.properties.sequence_id
         };
         cache.forImageId[d.id] = d;
-        features2.push({
+        features.push({
           minX: loc[0],
           minY: loc[1],
           maxX: loc[0],
@@ -37337,11 +38163,11 @@ ${content}</tr>
         });
       }
       if (cache.rtree) {
-        cache.rtree.load(features2);
+        cache.rtree.load(features);
       }
     }
     if (vectorTile.layers.hasOwnProperty("sequence")) {
-      features2 = [];
+      features = [];
       cache = _mlyCache.sequences;
       layer = vectorTile.layers.sequence;
       for (i2 = 0; i2 < layer.length; i2++) {
@@ -37354,7 +38180,7 @@ ${content}</tr>
       }
     }
     if (vectorTile.layers.hasOwnProperty("point")) {
-      features2 = [];
+      features = [];
       cache = _mlyCache[which];
       layer = vectorTile.layers.point;
       for (i2 = 0; i2 < layer.length; i2++) {
@@ -37367,7 +38193,7 @@ ${content}</tr>
           last_seen_at: feature3.properties.last_seen_at,
           value: feature3.properties.value
         };
-        features2.push({
+        features.push({
           minX: loc[0],
           minY: loc[1],
           maxX: loc[0],
@@ -37376,11 +38202,11 @@ ${content}</tr>
         });
       }
       if (cache.rtree) {
-        cache.rtree.load(features2);
+        cache.rtree.load(features);
       }
     }
     if (vectorTile.layers.hasOwnProperty("traffic_sign")) {
-      features2 = [];
+      features = [];
       cache = _mlyCache[which];
       layer = vectorTile.layers.traffic_sign;
       for (i2 = 0; i2 < layer.length; i2++) {
@@ -37393,7 +38219,7 @@ ${content}</tr>
           last_seen_at: feature3.properties.last_seen_at,
           value: feature3.properties.value
         };
-        features2.push({
+        features.push({
           minX: loc[0],
           minY: loc[1],
           maxX: loc[0],
@@ -37402,7 +38228,7 @@ ${content}</tr>
         });
       }
       if (cache.rtree) {
-        cache.rtree.load(features2);
+        cache.rtree.load(features);
       }
     }
   }
@@ -37437,12 +38263,14 @@ ${content}</tr>
     }, []);
   }
   var mapillary_default = {
+    // Initialize Mapillary
     init: function() {
       if (!_mlyCache) {
         this.reset();
       }
       this.event = utilRebind(this, dispatch5, "on");
     },
+    // Reset cache and state
     reset: function() {
       if (_mlyCache) {
         Object.values(_mlyCache.requests.inflight).forEach(function(request3) {
@@ -37459,21 +38287,26 @@ ${content}</tr>
       };
       _mlyActiveImage = null;
     },
+    // Get visible images
     images: function(projection2) {
       const limit = 5;
       return searchLimited(limit, projection2, _mlyCache.images.rtree);
     },
+    // Get visible traffic signs
     signs: function(projection2) {
       const limit = 5;
       return searchLimited(limit, projection2, _mlyCache.signs.rtree);
     },
+    // Get visible map (point) features
     mapFeatures: function(projection2) {
       const limit = 5;
       return searchLimited(limit, projection2, _mlyCache.points.rtree);
     },
+    // Get cached image by id
     cachedImage: function(imageId) {
       return _mlyCache.images.forImageId[imageId];
     },
+    // Get visible sequences
     sequences: function(projection2) {
       const viewport = projection2.clipExtent();
       const min3 = [viewport[0][0], viewport[1][1]];
@@ -37493,15 +38326,19 @@ ${content}</tr>
       });
       return lineStrings;
     },
+    // Load images in the visible area
     loadImages: function(projection2) {
       loadTiles("images", tileUrl, 14, projection2);
     },
+    // Load traffic signs in the visible area
     loadSigns: function(projection2) {
       loadTiles("signs", trafficSignTileUrl, 14, projection2);
     },
+    // Load map (point) features in the visible area
     loadMapFeatures: function(projection2) {
       loadTiles("points", mapFeatureTileUrl, 14, projection2);
     },
+    // Return a promise that resolves when the image viewer (Mapillary JS) library has finished loading
     ensureViewerLoaded: function(context) {
       if (_loadViewerPromise)
         return _loadViewerPromise;
@@ -37529,31 +38366,45 @@ ${content}</tr>
       });
       return _loadViewerPromise;
     },
+    // Load traffic sign image sprites
     loadSignResources: function(context) {
-      context.ui().svgDefs.addSprites(["mapillary-sprite"], false);
+      context.ui().svgDefs.addSprites(
+        ["mapillary-sprite"],
+        false
+        /* don't override colors */
+      );
       return this;
     },
+    // Load map (point) feature image sprites
     loadObjectResources: function(context) {
-      context.ui().svgDefs.addSprites(["mapillary-object-sprite"], false);
+      context.ui().svgDefs.addSprites(
+        ["mapillary-object-sprite"],
+        false
+        /* don't override colors */
+      );
       return this;
     },
+    // Remove previous detections in image viewer
     resetTags: function() {
       if (_mlyViewer && !_mlyFallback) {
         _mlyViewer.getComponent("tag").removeAll();
       }
     },
+    // Show map feature detections in image viewer
     showFeatureDetections: function(value) {
       _mlyShowFeatureDetections = value;
       if (!_mlyShowFeatureDetections && !_mlyShowSignDetections) {
         this.resetTags();
       }
     },
+    // Show traffic sign detections in image viewer
     showSignDetections: function(value) {
       _mlyShowSignDetections = value;
       if (!_mlyShowFeatureDetections && !_mlyShowSignDetections) {
         this.resetTags();
       }
     },
+    // Apply filter to image viewer
     filterViewer: function(context) {
       const showsPano = context.photos().showsPanoramic();
       const showsFlat = context.photos().showsFlat();
@@ -37576,6 +38427,7 @@ ${content}</tr>
       _mlyViewerFilter = filter2;
       return filter2;
     },
+    // Make the image viewer visible
     showViewer: function(context) {
       const wrap2 = context.container().select(".photoviewer").classed("hide", false);
       const isHidden = wrap2.selectAll(".photo-wrapper.mly-wrapper.hide").size();
@@ -37586,6 +38438,7 @@ ${content}</tr>
       }
       return this;
     },
+    // Hide the image viewer and resets map markers
     hideViewer: function(context) {
       _mlyActiveImage = null;
       if (!_mlyFallback && _mlyViewer) {
@@ -37601,6 +38454,7 @@ ${content}</tr>
       dispatch5.call("loadedSigns");
       return this.setStyles(context, null);
     },
+    // Update the URL with current image id
     updateUrlImage: function(imageId) {
       if (!window.mocha) {
         const hash = utilStringQs(window.location.hash);
@@ -37612,12 +38466,14 @@ ${content}</tr>
         window.location.replace("#" + utilQsString(hash, true));
       }
     },
+    // Highlight the detection in the viewer that is related to the clicked map feature
     highlightDetection: function(detection) {
       if (detection) {
         _mlyHighlightedDetection = detection.id;
       }
       return this;
     },
+    // Initialize image viewer (Mapillar JS)
     initViewer: function(context) {
       const that = this;
       if (!window.mapillary)
@@ -37642,7 +38498,9 @@ ${content}</tr>
           sequence: false,
           tag: false,
           image: true,
+          // fallback
           navigation: true
+          // fallback
         };
       }
       _mlyViewer = new mapillary.Viewer(opts);
@@ -37672,6 +38530,7 @@ ${content}</tr>
         dispatch5.call("bearingChanged", void 0, e);
       }
     },
+    // Move to an image
     selectImage: function(context, imageId) {
       if (_mlyViewer && imageId) {
         _mlyViewer.moveTo(imageId).catch(function(e) {
@@ -37680,12 +38539,15 @@ ${content}</tr>
       }
       return this;
     },
+    // Return the currently displayed image
     getActiveImage: function() {
       return _mlyActiveImage;
     },
+    // Return a list of detection objects for the given id
     getDetections: function(id2) {
       return loadData(`${apiUrl}/${id2}/detections?access_token=${accessToken}&fields=id,value,image`);
     },
+    // Set the currently visible image
     setActiveImage: function(image) {
       if (image) {
         _mlyActiveImage = {
@@ -37699,6 +38561,7 @@ ${content}</tr>
         _mlyActiveImage = null;
       }
     },
+    // Update the currently highlighted sequence and selected bubble.
     setStyles: function(context, hovered) {
       const hoveredImageId = hovered && hovered.id;
       const hoveredSequenceId = hovered && hovered.sequence_id;
@@ -37715,6 +38578,7 @@ ${content}</tr>
       });
       return this;
     },
+    // Get detections for the current image and shows them in the image viewer
     updateDetections: function(imageId, url) {
       if (!_mlyViewer || _mlyFallback)
         return;
@@ -37789,6 +38653,7 @@ ${content}</tr>
         return tag;
       }
     },
+    // Return the current cache
     cache: function() {
       return _mlyCache;
     }
@@ -37964,6 +38829,7 @@ ${content}</tr>
       this._areaKeys = osmAreaKeys;
       this._lineKeys = buildLineKeys();
     },
+    // list of rules only relevant to tag checks...
     filterRuleChecks: function(selector) {
       var _ruleChecks = this._ruleChecks;
       return Object.keys(selector).reduce(function(rules, key) {
@@ -37973,6 +38839,7 @@ ${content}</tr>
         return rules;
       }, []);
     },
+    // builds tagMap from mapcss-parse selector object...
     buildTagMap: function(selector) {
       var getRegexValues = function(regexes) {
         return regexes.map(function(regex) {
@@ -38003,6 +38870,7 @@ ${content}</tr>
       }, {});
       return tagMap;
     },
+    // inspired by osmWay#isArea()
     inferGeometry: function(tagMap) {
       var _lineKeys = this._lineKeys;
       var _areaKeys = this._areaKeys;
@@ -38030,14 +38898,18 @@ ${content}</tr>
       }
       return "line";
     },
+    // adds from mapcss-parse selector check...
     addRule: function(selector) {
       var rule = {
+        // checks relevant to mapcss-selector
         checks: this.filterRuleChecks(selector),
+        // true if all conditions for a tag error are true..
         matches: function(entity) {
           return this.checks.every(function(check) {
             return check(entity.tags);
           });
         },
+        // borrowed from Way#isArea()
         inferredGeometry: this.inferGeometry(this.buildTagMap(selector), this._areaKeys),
         geometryMatches: function(entity, graph) {
           if (entity.type === "node" || entity.type === "relation") {
@@ -38046,6 +38918,7 @@ ${content}</tr>
             return this.inferredGeometry === entity.geometry(graph);
           }
         },
+        // when geometries match and tag matches are present, return a warning...
         findIssues: function(entity, graph, issues) {
           if (this.geometryMatches(entity, graph) && this.matches(entity)) {
             var severity = Object.keys(selector).indexOf("error") > -1 ? "error" : "warning";
@@ -38066,9 +38939,11 @@ ${content}</tr>
     clearRules: function() {
       this._validationRules = [];
     },
+    // returns validationRules...
     validationRules: function() {
       return this._validationRules;
     },
+    // returns ruleChecks
     ruleChecks: function() {
       return this._ruleChecks;
     }
@@ -38516,6 +39391,9 @@ ${content}</tr>
   var matchGroups = matchGroups_default.matchGroups;
   var trees = trees_default.trees;
   var Matcher = class {
+    //
+    // `constructor`
+    // initialize the genericWords regexes
     constructor() {
       this.matchIndex = void 0;
       this.genericWords = /* @__PURE__ */ new Map();
@@ -38525,6 +39403,18 @@ ${content}</tr>
       this.locationIndex = void 0;
       this.warnings = [];
     }
+    //
+    // `buildMatchIndex()`
+    // Call this to prepare the matcher for use
+    //
+    // `data` needs to be an Object indexed on a 'tree/key/value' path.
+    // (e.g. cache filled by `fileTree.read` or data found in `dist/nsi.json`)
+    // {
+    //    'brands/amenity/bank': { properties: {}, items: [ {}, {}, … ] },
+    //    'brands/amenity/bar':  { properties: {}, items: [ {}, {}, … ] },
+    //    …
+    // }
+    //
     buildMatchIndex(data) {
       const that = this;
       if (that.matchIndex)
@@ -38657,6 +39547,20 @@ ${content}</tr>
         return t === "flags" || t === "transit" || k === "landuse" || v === "atm" || v === "bicycle_parking" || v === "car_sharing" || v === "caravan_site" || v === "charging_station" || v === "dog_park" || v === "parking" || v === "phone" || v === "playground" || v === "post_box" || v === "public_bookcase" || v === "recycling" || v === "vending_machine";
       }
     }
+    //
+    // `buildLocationIndex()`
+    // Call this to prepare a which-polygon location index.
+    // This *resolves* all the locationSets into GeoJSON, which takes some time.
+    // You can skip this step if you don't care about matching within a location.
+    //
+    // `data` needs to be an Object indexed on a 'tree/key/value' path.
+    // (e.g. cache filled by `fileTree.read` or data found in `dist/nsi.json`)
+    // {
+    //    'brands/amenity/bank': { properties: {}, items: [ {}, {}, … ] },
+    //    'brands/amenity/bar':  { properties: {}, items: [ {}, {}, … ] },
+    //    …
+    // }
+    //
     buildLocationIndex(data, loco) {
       const that = this;
       if (that.locationIndex)
@@ -38697,6 +39601,54 @@ ${content}</tr>
         return JSON.parse(JSON.stringify(obj));
       }
     }
+    //
+    // `match()`
+    // Pass parts and return an Array of matches.
+    // `k` - key
+    // `v` - value
+    // `n` - namelike
+    // `loc` - optional - [lon,lat] location to search
+    //
+    // 1. If the [k,v,n] tuple matches a canonical item…
+    // Return an Array of match results.
+    // Each result will include the area in km² that the item is valid.
+    //
+    // Order of results:
+    // Primary ordering will be on the "match" column:
+    //   "primary" - where the query matches the `name` tag, followed by
+    //   "alternate" - where the query matches an alternate name tag (e.g. short_name, brand, operator, etc)
+    // Secondary ordering will be on the "area" column:
+    //   "area descending" if no location was provided, (worldwide before local)
+    //   "area ascending" if location was provided (local before worldwide)
+    //
+    // [
+    //   { match: 'primary',   itemID: String,  area: Number,  kv: String,  nsimple: String },
+    //   { match: 'primary',   itemID: String,  area: Number,  kv: String,  nsimple: String },
+    //   { match: 'alternate', itemID: String,  area: Number,  kv: String,  nsimple: String },
+    //   { match: 'alternate', itemID: String,  area: Number,  kv: String,  nsimple: String },
+    //   …
+    // ]
+    //
+    // -or-
+    //
+    // 2. If the [k,v,n] tuple matches an exclude pattern…
+    // Return an Array with a single exclude result, either
+    //
+    // [ { match: 'excludeGeneric', pattern: String,  kv: String } ]  // "generic" e.g. "Food Court"
+    //   or
+    // [ { match: 'excludeNamed', pattern: String,  kv: String } ]    // "named", e.g. "Kebabai"
+    //
+    // About results
+    //   "generic" - a generic word that is probably not really a name.
+    //     For these, iD should warn the user "Hey don't put 'food court' in the name tag".
+    //   "named" - a real name like "Kebabai" that is just common, but not a brand.
+    //     For these, iD should just let it be. We don't include these in NSI, but we don't want to nag users about it either.
+    //
+    // -or-
+    //
+    // 3. If the [k,v,n] tuple matches nothing of any kind, return `null`
+    //
+    //
     match(k, v, n2, loc) {
       const that = this;
       if (!that.matchIndex) {
@@ -38797,6 +39749,11 @@ ${content}</tr>
         }
       }
     }
+    //
+    // `getWarnings()`
+    // Return any warnings discovered when buiding the index.
+    // (currently this does nothing)
+    //
     getWarnings() {
       return this.warnings;
     }
@@ -39350,6 +40307,7 @@ ${content}</tr>
         select_default2(document).interrupt("history.perform");
         return _replace(arguments, 1);
       },
+      // Same as calling pop and then perform
       overwrite: function() {
         select_default2(document).interrupt("history.perform");
         return _overwrite(arguments, 1);
@@ -39366,6 +40324,7 @@ ${content}</tr>
         }
         return change(previous);
       },
+      // Back to the previous annotated state or _index = 0.
       undo: function() {
         select_default2(document).interrupt("history.perform");
         var previousStack = _stack[_index];
@@ -39378,6 +40337,7 @@ ${content}</tr>
         dispatch10.call("undone", this, _stack[_index], previousStack);
         return change(previous);
       },
+      // Forward to the next annotated state.
       redo: function() {
         select_default2(document).interrupt("history.perform");
         var previousStack = _stack[_index];
@@ -39421,6 +40381,8 @@ ${content}</tr>
           i2++;
         }
       },
+      // Returns the entities from the active graph with bounding boxes
+      // overlapping the given `extent`.
       intersects: function(extent) {
         return _tree.intersects(extent, _stack[_index].graph);
       },
@@ -39477,6 +40439,7 @@ ${content}</tr>
           return Array.from(s);
         }
       },
+      // save the current history state
       checkpoint: function(key) {
         _checkpoints[key] = {
           stack: _stack,
@@ -39484,6 +40447,7 @@ ${content}</tr>
         };
         return history;
       },
+      // restore history state to a given checkpoint or reset completely
       reset: function(key) {
         if (key !== void 0 && _checkpoints.hasOwnProperty(key)) {
           _stack = _checkpoints[key].stack;
@@ -39498,6 +40462,16 @@ ${content}</tr>
         dispatch10.call("change");
         return history;
       },
+      // `toIntroGraph()` is used to export the intro graph used by the walkthrough.
+      //
+      // To use it:
+      //  1. Start the walkthrough.
+      //  2. Get to a "free editing" tutorial step
+      //  3. Make your edits to the walkthrough map
+      //  4. In your browser dev console run:
+      //        `id.history().toIntroGraph()`
+      //  5. This outputs stringified JSON to the browser console
+      //  6. Copy it to `data/intro_graph.json` and prettify it in your code editor
       toIntroGraph: function() {
         var nextID = { n: 0, r: 0, w: 0 };
         var permIDs = {};
@@ -39612,6 +40586,7 @@ ${content}</tr>
           stack: s,
           nextIDs: osmEntity.id.next,
           index: _index,
+          // note the time the changes were saved
           timestamp: new Date().getTime()
         });
       },
@@ -39731,13 +40706,15 @@ ${content}</tr>
         lock.unlock();
       },
       save: function() {
-        if (lock.locked() && !_hasUnresolvedRestorableChanges) {
+        if (lock.locked() && // don't overwrite existing, unresolved changes
+        !_hasUnresolvedRestorableChanges) {
           const success = corePreferences(getKey("saved_history"), history.toJSON() || null);
           if (!success)
             dispatch10.call("storage_error");
         }
         return history;
       },
+      // delete the history version saved in localStorage
       clearSaved: function() {
         context.debouncedSave.cancel();
         if (lock.locked()) {
@@ -39755,6 +40732,7 @@ ${content}</tr>
       hasRestorableChanges: function() {
         return _hasUnresolvedRestorableChanges;
       },
+      // load history from a version stored in localStorage
       restore: function() {
         if (lock.locked()) {
           _hasUnresolvedRestorableChanges = false;
@@ -39792,7 +40770,7 @@ ${content}</tr>
 
   // modules/validations/almost_junction.js
   function validationAlmostJunction(context) {
-    const type3 = "almost_junction";
+    const type2 = "almost_junction";
     const EXTEND_TH_METERS = 5;
     const WELD_TH_METERS = 0.75;
     const CLOSE_NODE_TH = EXTEND_TH_METERS - WELD_TH_METERS;
@@ -39813,7 +40791,7 @@ ${content}</tr>
       let issues = [];
       extendableNodeInfos.forEach((extendableNodeInfo) => {
         issues.push(new validationIssue({
-          type: type3,
+          type: type2,
           subtype: "highway-highway",
           severity: "warning",
           message: function(context2) {
@@ -40031,13 +41009,13 @@ ${content}</tr>
         return null;
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/close_nodes.js
   function validationCloseNodes(context) {
-    var type3 = "close_nodes";
+    var type2 = "close_nodes";
     var pointThresholdMeters = 0.2;
     var validation = function(entity, graph) {
       if (entity.type === "node") {
@@ -40175,7 +41153,7 @@ ${content}</tr>
             if (zAxisDifferentiates)
               continue;
             issues.push(new validationIssue({
-              type: type3,
+              type: type2,
               subtype: "detached",
               severity: "warning",
               message: function(context2) {
@@ -40227,7 +41205,7 @@ ${content}</tr>
             return null;
         }
         return new validationIssue({
-          type: type3,
+          type: type2,
           subtype: "vertices",
           severity: "warning",
           message: function(context2) {
@@ -40261,13 +41239,13 @@ ${content}</tr>
         }
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/crossing_ways.js
   function validationCrossingWays(context) {
-    var type3 = "crossing_ways";
+    var type2 = "crossing_ways";
     function getFeatureWithFeatureTypeTagsForWay(way, graph) {
       if (getFeatureType(way, graph) === null) {
         var parentRels = graph.parentRelations(way);
@@ -40382,7 +41360,7 @@ ${content}</tr>
               return {};
             }
             var pathFeature = entity1IsPath ? entity1 : entity2;
-            if (["marked", "unmarked", "traffic_signals"].indexOf(pathFeature.tags.crossing) !== -1) {
+            if (["marked", "unmarked", "traffic_signals", "uncontrolled"].indexOf(pathFeature.tags.crossing) !== -1) {
               return bothLines ? { highway: "crossing", crossing: pathFeature.tags.crossing } : {};
             }
             return bothLines ? { highway: "crossing" } : {};
@@ -40518,7 +41496,8 @@ ${content}</tr>
         return [entity];
       } else if (entity.type === "relation") {
         return entity.members.reduce(function(array2, member) {
-          if (member.type === "way" && (!member.role || member.role === "outer" || member.role === "inner")) {
+          if (member.type === "way" && // only look at geometry ways
+          (!member.role || member.role === "outer" || member.role === "inner")) {
             var entity2 = graph.hasEntity(member.id);
             if (entity2 && array2.indexOf(entity2) === -1) {
               array2.push(entity2);
@@ -40580,7 +41559,7 @@ ${content}</tr>
       }
       var uniqueID = crossing.crossPoint[0].toFixed(4) + "," + crossing.crossPoint[1].toFixed(4);
       return new validationIssue({
-        type: type3,
+        type: type2,
         subtype,
         severity: "warning",
         message: function(context2) {
@@ -40671,7 +41650,7 @@ ${content}</tr>
           var action = function actionAddStructure(graph) {
             var edgeNodes = [graph.entity(edge[0]), graph.entity(edge[1])];
             var crossedWay = graph.hasEntity(crossedWayID);
-            var structLengthMeters = crossedWay && crossedWay.tags.width && parseFloat(crossedWay.tags.width);
+            var structLengthMeters = crossedWay && isFinite(crossedWay.tags.width) && Number(crossedWay.tags.width);
             if (!structLengthMeters) {
               structLengthMeters = crossedWay && crossedWay.impliedLineWidthMeters();
             }
@@ -40867,7 +41846,7 @@ ${content}</tr>
         }
       });
     }
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
@@ -40942,7 +41921,10 @@ ${content}</tr>
       }
       context.replace(actionMoveNode(_drawNode.id, loc), _annotation);
       _drawNode = context.entity(_drawNode.id);
-      checkGeometry(true);
+      checkGeometry(
+        true
+        /* includeDrawNode */
+      );
     }
     function checkGeometry(includeDrawNode) {
       var nopeDisabled = context.surface().classed("nope-disabled");
@@ -41055,7 +42037,10 @@ ${content}</tr>
       } else {
         createDrawNode(loc);
       }
-      checkGeometry(true);
+      checkGeometry(
+        true
+        /* includeDrawNode */
+      );
       if (d && d.properties && d.properties.nope || context.surface().classed("nope")) {
         if (!_pointerHasMoved) {
           removeDrawNode();
@@ -41082,7 +42067,8 @@ ${content}</tr>
       });
     };
     drawWay.addNode = function(node, d) {
-      if (node.id === _headNodeID || _origWay.isClosed() && node.id === _origWay.first()) {
+      if (node.id === _headNodeID || // or the first node when drawing an area
+      _origWay.isClosed() && node.id === _origWay.first()) {
         drawWay.finish();
         return;
       }
@@ -41145,7 +42131,10 @@ ${content}</tr>
     keybinding.on(_t("operations.follow.key"), followMode);
     select_default2(document).call(keybinding);
     drawWay.finish = function() {
-      checkGeometry(false);
+      checkGeometry(
+        false
+        /* includeDrawNode */
+      );
       if (context.surface().classed("nope")) {
         dispatch10.call("rejectedSelfIntersection", this);
         return;
@@ -41218,7 +42207,7 @@ ${content}</tr>
 
   // modules/validations/disconnected_way.js
   function validationDisconnectedWay() {
-    var type3 = "disconnected_way";
+    var type2 = "disconnected_way";
     function isTaggedAsHighway(entity) {
       return osmRoutableHighwayTagValues[entity.tags.highway];
     }
@@ -41227,7 +42216,7 @@ ${content}</tr>
       if (!routingIslandWays)
         return [];
       return [new validationIssue({
-        type: type3,
+        type: type2,
         subtype: "highway",
         severity: "warning",
         message: function(context) {
@@ -41286,7 +42275,8 @@ ${content}</tr>
         var waysToCheck = [];
         function queueParentWays(node) {
           graph.parentWays(node).forEach(function(parentWay) {
-            if (!routingIsland.has(parentWay) && isRoutableWay(parentWay, false)) {
+            if (!routingIsland.has(parentWay) && // only check each feature once
+            isRoutableWay(parentWay, false)) {
               routingIsland.add(parentWay);
               waysToCheck.push(parentWay);
             }
@@ -41370,13 +42360,13 @@ ${content}</tr>
         });
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/invalid_format.js
   function validationFormatting() {
-    var type3 = "invalid_format";
+    var type2 = "invalid_format";
     var validation = function(entity) {
       var issues = [];
       function isValidEmail(email) {
@@ -41394,7 +42384,7 @@ ${content}</tr>
         });
         if (emails.length) {
           issues.push(new validationIssue({
-            type: type3,
+            type: type2,
             subtype: "email",
             severity: "warning",
             message: function(context) {
@@ -41413,13 +42403,13 @@ ${content}</tr>
       }
       return issues;
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/help_request.js
   function validationHelpRequest(context) {
-    var type3 = "help_request";
+    var type2 = "help_request";
     var validation = function checkFixmeTag(entity) {
       if (!entity.tags.fixme)
         return [];
@@ -41431,13 +42421,18 @@ ${content}</tr>
           return [];
       }
       return [new validationIssue({
-        type: type3,
+        type: type2,
         subtype: "fixme_tag",
         severity: "warning",
         message: function(context2) {
           var entity2 = context2.hasEntity(this.entityIds[0]);
           return entity2 ? _t.append("issues.fixme_tag.message", {
-            feature: utilDisplayLabel(entity2, context2.graph(), true)
+            feature: utilDisplayLabel(
+              entity2,
+              context2.graph(),
+              true
+              /* verbose */
+            )
           }) : "";
         },
         dynamicFixes: function() {
@@ -41454,13 +42449,13 @@ ${content}</tr>
         selection2.selectAll(".issue-reference").data([0]).enter().append("div").attr("class", "issue-reference").call(_t.append("issues.fixme_tag.reference"));
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/impossible_oneway.js
   function validationImpossibleOneway() {
-    var type3 = "impossible_oneway";
+    var type2 = "impossible_oneway";
     var validation = function checkImpossibleOneway(entity, graph) {
       if (entity.type !== "way" || entity.geometry(graph) !== "line")
         return [];
@@ -41586,7 +42581,7 @@ ${content}</tr>
           referenceID += placement;
         }
         return [new validationIssue({
-          type: type3,
+          type: type2,
           subtype: wayType,
           severity: "warning",
           message: function(context) {
@@ -41645,13 +42640,13 @@ ${content}</tr>
         modeDrawLine(context, way.id, context.graph(), "line", way.affix(vertex.id), true)
       );
     }
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/incompatible_source.js
   function validationIncompatibleSource() {
-    const type3 = "incompatible_source";
+    const type2 = "incompatible_source";
     const incompatibleRules = [
       {
         id: "amap",
@@ -41683,12 +42678,17 @@ ${content}</tr>
         if (!matchRule)
           return null;
         return new validationIssue({
-          type: type3,
+          type: type2,
           severity: "warning",
           message: (context) => {
             const entity2 = context.hasEntity(entityID);
             return entity2 ? _t.append("issues.incompatible_source.feature.message", {
-              feature: utilDisplayLabel(entity2, context.graph(), true),
+              feature: utilDisplayLabel(
+                entity2,
+                context.graph(),
+                true
+                /* verbose */
+              ),
               value: source
             }) : "";
           },
@@ -41708,13 +42708,13 @@ ${content}</tr>
         };
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/maprules.js
   function validationMaprules() {
-    var type3 = "maprules";
+    var type2 = "maprules";
     var validation = function checkMaprules(entity, graph) {
       if (!services.maprules)
         return [];
@@ -41726,14 +42726,14 @@ ${content}</tr>
       }
       return issues;
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/mismatched_geometry.js
   var import_fast_deep_equal4 = __toESM(require_fast_deep_equal());
   function validationMismatchedGeometry() {
-    var type3 = "mismatched_geometry";
+    var type2 = "mismatched_geometry";
     function tagSuggestingLineIsArea(entity) {
       if (entity.type !== "way" || entity.isClosed())
         return null;
@@ -41799,13 +42799,18 @@ ${content}</tr>
         }
       }
       return new validationIssue({
-        type: type3,
+        type: type2,
         subtype: "area_as_line",
         severity: "warning",
         message: function(context) {
           var entity2 = context.hasEntity(this.entityIds[0]);
           return entity2 ? _t.append("issues.tag_suggests_area.message", {
-            feature: utilDisplayLabel(entity2, "area", true),
+            feature: utilDisplayLabel(
+              entity2,
+              "area",
+              true
+              /* verbose */
+            ),
             tag: utilTagText({ tags: tagSuggestingArea })
           }) : "";
         },
@@ -41856,13 +42861,18 @@ ${content}</tr>
       var allowedGeometries = osmNodeGeometriesForTags(entity.tags);
       if (geometry === "point" && !allowedGeometries.point && allowedGeometries.vertex) {
         return new validationIssue({
-          type: type3,
+          type: type2,
           subtype: "vertex_as_point",
           severity: "warning",
           message: function(context) {
             var entity2 = context.hasEntity(this.entityIds[0]);
             return entity2 ? _t.append("issues.vertex_as_point.message", {
-              feature: utilDisplayLabel(entity2, "vertex", true)
+              feature: utilDisplayLabel(
+                entity2,
+                "vertex",
+                true
+                /* verbose */
+              )
             }) : "";
           },
           reference: function showReference(selection2) {
@@ -41872,13 +42882,18 @@ ${content}</tr>
         });
       } else if (geometry === "vertex" && !allowedGeometries.vertex && allowedGeometries.point) {
         return new validationIssue({
-          type: type3,
+          type: type2,
           subtype: "point_as_vertex",
           severity: "warning",
           message: function(context) {
             var entity2 = context.hasEntity(this.entityIds[0]);
             return entity2 ? _t.append("issues.point_as_vertex.message", {
-              feature: utilDisplayLabel(entity2, "point", true)
+              feature: utilDisplayLabel(
+                entity2,
+                "point",
+                true
+                /* verbose */
+              )
             }) : "";
           },
           reference: function showReference(selection2) {
@@ -41904,7 +42919,8 @@ ${content}</tr>
       var asSource = _mainPresetIndex.match(entity, graph);
       var targetGeom = targetGeoms.find((nodeGeom) => {
         var asTarget = _mainPresetIndex.matchTags(entity.tags, nodeGeom);
-        if (!asSource || !asTarget || asSource === asTarget || (0, import_fast_deep_equal4.default)(asSource.tags, asTarget.tags))
+        if (!asSource || !asTarget || asSource === asTarget || // sometimes there are two presets with the same tags for different geometries
+        (0, import_fast_deep_equal4.default)(asSource.tags, asTarget.tags))
           return false;
         if (asTarget.isFallback())
           return false;
@@ -41930,13 +42946,18 @@ ${content}</tr>
         dynamicFixes = lineToAreaDynamicFixes;
       }
       return new validationIssue({
-        type: type3,
+        type: type2,
         subtype,
         severity: "warning",
         message: function(context) {
           var entity2 = context.hasEntity(this.entityIds[0]);
           return entity2 ? _t.append("issues." + referenceId + ".message", {
-            feature: utilDisplayLabel(entity2, targetGeom, true)
+            feature: utilDisplayLabel(
+              entity2,
+              targetGeom,
+              true
+              /* verbose */
+            )
           }) : "";
         },
         reference: function showReference(selection2) {
@@ -41997,7 +43018,8 @@ ${content}</tr>
       ];
     }
     function unclosedMultipolygonPartIssues(entity, graph) {
-      if (entity.type !== "relation" || !entity.isMultipolygon() || entity.isDegenerate() || !entity.isComplete(graph))
+      if (entity.type !== "relation" || !entity.isMultipolygon() || entity.isDegenerate() || // cannot determine issues for incompletely-downloaded relations
+      !entity.isComplete(graph))
         return [];
       var sequences = osmJoinWays(entity.members, graph);
       var issues = [];
@@ -42010,13 +43032,18 @@ ${content}</tr>
         if (firstNode === lastNode)
           continue;
         var issue = new validationIssue({
-          type: type3,
+          type: type2,
           subtype: "unclosed_multipolygon_part",
           severity: "warning",
           message: function(context) {
             var entity2 = context.hasEntity(this.entityIds[0]);
             return entity2 ? _t.append("issues.unclosed_multipolygon_part.message", {
-              feature: utilDisplayLabel(entity2, context.graph(), true)
+              feature: utilDisplayLabel(
+                entity2,
+                context.graph(),
+                true
+                /* verbose */
+              )
             }) : "";
           },
           reference: showReference,
@@ -42045,13 +43072,13 @@ ${content}</tr>
         return [mismatch];
       return unclosedMultipolygonPartIssues(entity, graph);
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/missing_role.js
   function validationMissingRole() {
-    var type3 = "missing_role";
+    var type2 = "missing_role";
     var validation = function checkMissingRole(entity, graph) {
       var issues = [];
       if (entity.type === "way") {
@@ -42078,7 +43105,7 @@ ${content}</tr>
     }
     function makeIssue(way, relation, member) {
       return new validationIssue({
-        type: type3,
+        type: type2,
         severity: "warning",
         message: function(context) {
           var member2 = context.hasEntity(this.entityIds[1]), relation2 = context.hasEntity(this.entityIds[0]);
@@ -42131,13 +43158,13 @@ ${content}</tr>
         }
       });
     }
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/missing_tag.js
   function validationMissingTag(context) {
-    var type3 = "missing_tag";
+    var type2 = "missing_tag";
     function hasDescriptiveTags(entity, graph) {
       var onlyAttributeKeys = ["description", "name", "note", "start_date"];
       var entityDescriptiveKeys = Object.keys(entity.tags).filter(function(k) {
@@ -42162,7 +43189,9 @@ ${content}</tr>
       var subtype;
       var osm = context.connection();
       var isUnloadedNode = entity.type === "node" && osm && !osm.isDataLoaded(entity.loc);
-      if (!isUnloadedNode && entity.geometry(graph) !== "vertex" && !entity.hasParentRelations(graph)) {
+      if (!isUnloadedNode && // allow untagged nodes that are part of ways
+      entity.geometry(graph) !== "vertex" && // allow untagged entities that are part of relations
+      !entity.hasParentRelations(graph)) {
         if (Object.keys(entity.tags).length === 0) {
           subtype = "any";
         } else if (!hasDescriptiveTags(entity, graph)) {
@@ -42181,7 +43210,7 @@ ${content}</tr>
       var canDelete = entity.version === void 0 || entity.v !== void 0;
       var severity = canDelete && subtype !== "highway_classification" ? "error" : "warning";
       return [new validationIssue({
-        type: type3,
+        type: type2,
         subtype,
         severity,
         message: function(context2) {
@@ -42230,28 +43259,34 @@ ${content}</tr>
         selection2.selectAll(".issue-reference").data([0]).enter().append("div").attr("class", "issue-reference").call(_t.append("issues." + referenceID + ".reference"));
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/outdated_tags.js
   function validationOutdatedTags() {
-    const type3 = "outdated_tags";
+    const type2 = "outdated_tags";
     let _waitingForDeprecated = true;
     let _dataDeprecated;
     _mainFileFetcher.get("deprecated").then((d) => _dataDeprecated = d).catch(() => {
     }).finally(() => _waitingForDeprecated = false);
     function oldTagIssues(entity, graph) {
-      const oldTags = Object.assign({}, entity.tags);
+      if (!entity.hasInterestingTags())
+        return [];
       let preset = _mainPresetIndex.match(entity, graph);
-      let subtype = "deprecated_tags";
       if (!preset)
         return [];
-      if (!entity.hasInterestingTags())
-        return [];
+      const oldTags = Object.assign({}, entity.tags);
+      let subtype = "deprecated_tags";
       if (preset.replacement) {
         const newPreset = _mainPresetIndex.item(preset.replacement);
-        graph = actionChangePreset(entity.id, preset, newPreset, true)(graph);
+        graph = actionChangePreset(
+          entity.id,
+          preset,
+          newPreset,
+          true
+          /* skip field defaults */
+        )(graph);
         entity = graph.entity(entity.id);
         preset = newPreset;
       }
@@ -42305,7 +43340,7 @@ ${content}</tr>
       }
       let autoArgs = subtype !== "noncanonical_brand" ? [doUpgrade, _t("issues.fix.upgrade_tags.annotation")] : null;
       issues.push(new validationIssue({
-        type: type3,
+        type: type2,
         subtype,
         severity: "warning",
         message: showMessage,
@@ -42379,7 +43414,12 @@ ${content}</tr>
           messageID += "_incomplete";
         }
         return _t.append(messageID, {
-          feature: utilDisplayLabel(currEntity, context.graph(), true)
+          feature: utilDisplayLabel(
+            currEntity,
+            context.graph(),
+            true
+            /* verbose */
+          )
         });
       }
       function showReference(selection2) {
@@ -42406,7 +43446,7 @@ ${content}</tr>
       if (!multipolygon || !outerWay)
         return [];
       return [new validationIssue({
-        type: type3,
+        type: type2,
         subtype: "old_multipolygon",
         severity: "warning",
         message: showMessage,
@@ -42439,7 +43479,12 @@ ${content}</tr>
           return "";
         return _t.append(
           "issues.old_multipolygon.message",
-          { multipolygon: utilDisplayLabel(currMultipolygon, context.graph(), true) }
+          { multipolygon: utilDisplayLabel(
+            currMultipolygon,
+            context.graph(),
+            true
+            /* verbose */
+          ) }
         );
       }
       function showReference(selection2) {
@@ -42452,13 +43497,13 @@ ${content}</tr>
         issues = oldTagIssues(entity, graph);
       return issues;
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/private_data.js
   function validationPrivateData() {
-    var type3 = "private_data";
+    var type2 = "private_data";
     var privateBuildingValues = {
       detached: true,
       farm: true,
@@ -42502,7 +43547,7 @@ ${content}</tr>
         return [];
       var fixID = tagDiff.length === 1 ? "remove_tag" : "remove_tags";
       return [new validationIssue({
-        type: type3,
+        type: type2,
         severity: "warning",
         message: showMessage,
         reference: showReference,
@@ -42554,13 +43599,13 @@ ${content}</tr>
         });
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/suspicious_name.js
   function validationSuspiciousName() {
-    const type3 = "suspicious_name";
+    const type2 = "suspicious_name";
     const keysToTestForGenericValues = [
       "aerialway",
       "aeroway",
@@ -42606,7 +43651,7 @@ ${content}</tr>
     }
     function makeGenericNameIssue(entityId, nameKey, genericName, langCode) {
       return new validationIssue({
-        type: type3,
+        type: type2,
         subtype: "generic_name",
         severity: "warning",
         message: function(context) {
@@ -42648,7 +43693,7 @@ ${content}</tr>
     }
     function makeIncorrectNameIssue(entityId, nameKey, incorrectName, langCode) {
       return new validationIssue({
-        type: type3,
+        type: type2,
         subtype: "not_name",
         severity: "warning",
         message: function(context) {
@@ -42717,13 +43762,13 @@ ${content}</tr>
       }
       return issues;
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
   // modules/validations/unsquare_way.js
   function validationUnsquareWay(context) {
-    var type3 = "unsquare_way";
+    var type2 = "unsquare_way";
     var DEFAULT_DEG_THRESHOLD = 5;
     var epsilon3 = 0.05;
     var nodeThreshold = 10;
@@ -42762,7 +43807,7 @@ ${content}</tr>
       if (hasConnectedSquarableWays)
         return [];
       var storedDegreeThreshold = corePreferences("validate-square-degrees");
-      var degreeThreshold = isNaN(storedDegreeThreshold) ? DEFAULT_DEG_THRESHOLD : parseFloat(storedDegreeThreshold);
+      var degreeThreshold = isFinite(storedDegreeThreshold) ? Number(storedDegreeThreshold) : DEFAULT_DEG_THRESHOLD;
       var points = nodes.map(function(node) {
         return context.projection(node.loc);
       });
@@ -42775,7 +43820,7 @@ ${content}</tr>
         autoArgs = [autoAction, _t("operations.orthogonalize.annotation.feature", { n: 1 })];
       }
       return [new validationIssue({
-        type: type3,
+        type: type2,
         subtype: "building",
         severity: "warning",
         message: function(context2) {
@@ -42804,6 +43849,21 @@ ${content}</tr>
                 }, 175);
               }
             })
+            /*
+            new validationIssueFix({
+                title: t.append('issues.fix.tag_as_unsquare.title'),
+                onClick: function(context) {
+                    var entityId = this.issue.entityIds[0];
+                    var entity = context.entity(entityId);
+                    var tags = Object.assign({}, entity.tags);  // shallow copy
+                    tags.nonsquare = 'yes';
+                    context.perform(
+                        actionChangeTags(entityId, tags),
+                        t('issues.fix.tag_as_unsquare.annotation')
+                    );
+                }
+            })
+            */
           ];
         }
       })];
@@ -42811,7 +43871,7 @@ ${content}</tr>
         selection2.selectAll(".issue-reference").data([0]).enter().append("div").attr("class", "issue-reference").call(_t.append("issues.unsquare_way.buildings.reference"));
       }
     };
-    validation.type = type3;
+    validation.type = type2;
     return validation;
   }
 
@@ -42840,11 +43900,11 @@ ${content}</tr>
       rules.forEach((rule) => {
         rule = rule.trim();
         const parts = rule.split("/", 2);
-        const type3 = parts[0];
+        const type2 = parts[0];
         const subtype = parts[1] || "*";
-        if (!type3 || !subtype)
+        if (!type2 || !subtype)
           return;
-        result.push({ type: makeRegExp(type3), subtype: makeRegExp(subtype) });
+        result.push({ type: makeRegExp(type2), subtype: makeRegExp(subtype) });
       });
       return result;
       function makeRegExp(str2) {
@@ -43004,14 +44064,19 @@ ${content}</tr>
     };
     validator.getSharedEntityIssues = (entityIDs, options2) => {
       const orderedIssueTypes = [
+        // Show some issue types in a particular order:
         "missing_tag",
         "missing_role",
+        // - missing data first
         "outdated_tags",
         "mismatched_geometry",
+        // - identity issues
         "crossing_ways",
         "almost_junction",
+        // - geometry issues where fixing them might solve connectivity issues
         "disconnected_way",
         "impossible_oneway"
+        // - finally connectivity issues
       ];
       const allIssues = validator.getIssues(options2);
       const forEntityIDs = new Set(entityIDs);
@@ -43126,23 +44191,23 @@ ${content}</tr>
         detected = detected.filter(applySeverityOverrides);
         result.issues = result.issues.concat(detected);
         function applySeverityOverrides(issue) {
-          const type3 = issue.type;
+          const type2 = issue.type;
           const subtype = issue.subtype || "";
           let i2;
           for (i2 = 0; i2 < _errorOverrides.length; i2++) {
-            if (_errorOverrides[i2].type.test(type3) && _errorOverrides[i2].subtype.test(subtype)) {
+            if (_errorOverrides[i2].type.test(type2) && _errorOverrides[i2].subtype.test(subtype)) {
               issue.severity = "error";
               return true;
             }
           }
           for (i2 = 0; i2 < _warningOverrides.length; i2++) {
-            if (_warningOverrides[i2].type.test(type3) && _warningOverrides[i2].subtype.test(subtype)) {
+            if (_warningOverrides[i2].type.test(type2) && _warningOverrides[i2].subtype.test(subtype)) {
               issue.severity = "warning";
               return true;
             }
           }
           for (i2 = 0; i2 < _disableOverrides.length; i2++) {
-            if (_disableOverrides[i2].type.test(type3) && _disableOverrides[i2].subtype.test(subtype)) {
+            if (_disableOverrides[i2].type.test(type2) && _disableOverrides[i2].subtype.test(subtype)) {
               return false;
             }
           }
@@ -43232,7 +44297,9 @@ ${content}</tr>
       queuedEntityIDs: /* @__PURE__ */ new Set(),
       provisionalEntityIDs: /* @__PURE__ */ new Set(),
       issuesByIssueID: {},
+      // issue.id -> issue
       issuesByEntityID: {}
+      // entity.id -> Set(issue.id)
     };
     cache.cacheIssue = (issue) => {
       (issue.entityIds || []).forEach((entityID) => {
@@ -43257,8 +44324,8 @@ ${content}</tr>
     cache.uncacheIssues = (issues) => {
       issues.forEach(cache.uncacheIssue);
     };
-    cache.uncacheIssuesOfType = (type3) => {
-      const issuesOfType = Object.values(cache.issuesByIssueID).filter((issue) => issue.type === type3);
+    cache.uncacheIssuesOfType = (type2) => {
+      const issuesOfType = Object.values(cache.issuesByIssueID).filter((issue) => issue.type === type2);
       cache.uncacheIssues(issuesOfType);
     };
     cache.uncacheEntityID = (entityID) => {
@@ -43300,14 +44367,23 @@ ${content}</tr>
   // modules/core/uploader.js
   function coreUploader(context) {
     var dispatch10 = dispatch_default(
+      // Start and end events are dispatched exactly once each per legitimate outside call to `save`
       "saveStarted",
+      // dispatched as soon as a call to `save` has been deemed legitimate
       "saveEnded",
+      // dispatched after the result event has been dispatched
       "willAttemptUpload",
+      // dispatched before the actual upload call occurs, if it will
       "progressChanged",
+      // Each save results in one of these outcomes:
       "resultNoChanges",
+      // upload wasn't attempted since there were no edits
       "resultErrors",
+      // upload failed due to errors
       "resultConflicts",
+      // upload failed due to data conflicts
       "resultSuccess"
+      // upload completed without errors
     );
     var _isSaving = false;
     var _conflicts = [];
@@ -43598,6 +44674,12 @@ ${content}</tr>
 
   // modules/util/IntervalTasksQueue.js
   var IntervalTasksQueue = class {
+    /**
+     * Interval in milliseconds inside which only 1 task can execute.
+     * e.g. if interval is 200ms, and 5 async tasks are unqueued,
+     * they will complete in ~1s if not cleared
+     * @param {number} intervalInMs
+     */
     constructor(intervalInMs) {
       this.intervalInMs = intervalInMs;
       this.pendingHandles = [];
@@ -43753,7 +44835,8 @@ ${content}</tr>
             case "wkid":
               return projection2.replace(/^EPSG:/, "");
             case "bbox":
-              if (projection2 === "EPSG:4326" && /VERSION=1.3|CRS={proj}/.test(source.template().toUpperCase())) {
+              if (projection2 === "EPSG:4326" && // The CRS parameter implies version 1.3 (prior versions use SRS)
+              /VERSION=1.3|CRS={proj}/.test(source.template().toUpperCase())) {
                 return maxXminY.y + "," + minXmaxY.x + "," + minXmaxY.y + "," + maxXminY.x;
               } else {
                 return minXmaxY.x + "," + maxXminY.y + "," + maxXminY.x + "," + minXmaxY.y;
@@ -43978,8 +45061,8 @@ ${content}</tr>
           vintage,
           source: clean2(result.NICE_NAME),
           description: clean2(result.NICE_DESC),
-          resolution: clean2(+parseFloat(result.SRC_RES).toFixed(4)),
-          accuracy: clean2(+parseFloat(result.SRC_ACC).toFixed(4))
+          resolution: clean2(+Number(result.SRC_RES).toFixed(4)),
+          accuracy: clean2(+Number(result.SRC_ACC).toFixed(4))
         };
         if (isFinite(metadata.resolution)) {
           metadata.resolution += " m";
@@ -44241,14 +45324,14 @@ ${content}</tr>
   // node_modules/@turf/bbox-clip/dist/es/index.js
   function bboxClip(feature3, bbox2) {
     var geom = getGeom(feature3);
-    var type3 = geom.type;
+    var type2 = geom.type;
     var properties = feature3.type === "Feature" ? feature3.properties : {};
     var coords = geom.coordinates;
-    switch (type3) {
+    switch (type2) {
       case "LineString":
       case "MultiLineString": {
         var lines_1 = [];
-        if (type3 === "LineString") {
+        if (type2 === "LineString") {
           coords = [coords];
         }
         coords.forEach(function(line) {
@@ -44266,7 +45349,7 @@ ${content}</tr>
           return clipPolygon(poly, bbox2);
         }), properties);
       default:
-        throw new Error("geometry " + type3 + " not supported");
+        throw new Error("geometry " + type2 + " not supported");
     }
   }
   function clipPolygon(rings, bbox2) {
@@ -44290,7 +45373,7 @@ ${content}</tr>
   function coordEach(geojson, callback, excludeWrapCoord) {
     if (geojson === null)
       return;
-    var j2, k, l, geometry, stopG, coords, geometryMaybeCollection, wrapShrink = 0, coordIndex = 0, isGeometryCollection, type3 = geojson.type, isFeatureCollection = type3 === "FeatureCollection", isFeature = type3 === "Feature", stop = isFeatureCollection ? geojson.features.length : 1;
+    var j2, k, l, geometry, stopG, coords, geometryMaybeCollection, wrapShrink = 0, coordIndex = 0, isGeometryCollection, type2 = geojson.type, isFeatureCollection = type2 === "FeatureCollection", isFeature = type2 === "Feature", stop = isFeatureCollection ? geojson.features.length : 1;
     for (var featureIndex = 0; featureIndex < stop; featureIndex++) {
       geometryMaybeCollection = isFeatureCollection ? geojson.features[featureIndex].geometry : isFeature ? geojson.geometry : geojson;
       isGeometryCollection = geometryMaybeCollection ? geometryMaybeCollection.type === "GeometryCollection" : false;
@@ -44579,6 +45662,7 @@ ${content}</tr>
             if (result && result.vintage && result.vintage.range) {
               span.text(result.vintage.range);
             } else {
+              span.text("");
               span.call(_t.append("info_panels.background.vintage"));
               span.append("span").text(": ");
               span.call(_t.append("info_panels.background.unknown"));
@@ -44631,7 +45715,7 @@ ${content}</tr>
           imagery: sources,
           features: {}
         };
-        const features2 = sources.map((source) => {
+        const features = sources.map((source) => {
           if (!source.polygon)
             return null;
           const rings = source.polygon.map((ring) => [ring]);
@@ -44643,7 +45727,7 @@ ${content}</tr>
           _imageryIndex.features[source.id] = feature3;
           return feature3;
         }).filter(Boolean);
-        _imageryIndex.query = (0, import_which_polygon4.default)({ type: "FeatureCollection", features: features2 });
+        _imageryIndex.query = (0, import_which_polygon4.default)({ type: "FeatureCollection", features });
         _imageryIndex.backgrounds = sources.map((source) => {
           if (source.type === "bing") {
             return rendererBackgroundSource.Bing(source, dispatch10);
@@ -44991,7 +46075,7 @@ ${content}</tr>
   // modules/renderer/features.js
   function rendererFeatures(context) {
     var dispatch10 = dispatch_default("change", "redraw");
-    var features2 = utilRebind({}, dispatch10, "on");
+    var features = utilRebind({}, dispatch10, "on");
     var _deferred2 = /* @__PURE__ */ new Set();
     var traffic_roads = {
       "motorway": true,
@@ -45006,7 +46090,8 @@ ${content}</tr>
       "tertiary_link": true,
       "residential": true,
       "unclassified": true,
-      "living_street": true
+      "living_street": true,
+      "busway": true
     };
     var service_roads = {
       "service": true,
@@ -45031,7 +46116,7 @@ ${content}</tr>
     function update() {
       if (!window.mocha) {
         var hash = utilStringQs(window.location.hash);
-        var disabled = features2.disabled();
+        var disabled = features.disabled();
         if (disabled.length) {
           hash.disable_features = disabled.join(",");
         } else {
@@ -45040,7 +46125,7 @@ ${content}</tr>
         window.location.replace("#" + utilQsString(hash, true));
         corePreferences("disabled-features", disabled.join(","));
       }
-      _hidden = features2.hidden();
+      _hidden = features.hidden();
       dispatch10.call("change");
       dispatch10.call("redraw");
     }
@@ -45050,6 +46135,7 @@ ${content}</tr>
       _rules[k] = {
         filter: filter2,
         enabled: isEnabled,
+        // whether the user wants it enabled..
         count: 0,
         currentMax: max3 || Infinity,
         defaultMax: max3 || Infinity,
@@ -45126,13 +46212,13 @@ ${content}</tr>
     defineRule("others", function isOther(tags, geometry) {
       return geometry === "line" || geometry === "area";
     });
-    features2.features = function() {
+    features.features = function() {
       return _rules;
     };
-    features2.keys = function() {
+    features.keys = function() {
       return _keys;
     };
-    features2.enabled = function(k) {
+    features.enabled = function(k) {
       if (!arguments.length) {
         return _keys.filter(function(k2) {
           return _rules[k2].enabled;
@@ -45140,7 +46226,7 @@ ${content}</tr>
       }
       return _rules[k] && _rules[k].enabled;
     };
-    features2.disabled = function(k) {
+    features.disabled = function(k) {
       if (!arguments.length) {
         return _keys.filter(function(k2) {
           return !_rules[k2].enabled;
@@ -45148,7 +46234,7 @@ ${content}</tr>
       }
       return _rules[k] && !_rules[k].enabled;
     };
-    features2.hidden = function(k) {
+    features.hidden = function(k) {
       if (!arguments.length) {
         return _keys.filter(function(k2) {
           return _rules[k2].hidden();
@@ -45156,7 +46242,7 @@ ${content}</tr>
       }
       return _rules[k] && _rules[k].hidden();
     };
-    features2.autoHidden = function(k) {
+    features.autoHidden = function(k) {
       if (!arguments.length) {
         return _keys.filter(function(k2) {
           return _rules[k2].autoHidden();
@@ -45164,13 +46250,13 @@ ${content}</tr>
       }
       return _rules[k] && _rules[k].autoHidden();
     };
-    features2.enable = function(k) {
+    features.enable = function(k) {
       if (_rules[k] && !_rules[k].enabled) {
         _rules[k].enable();
         update();
       }
     };
-    features2.enableAll = function() {
+    features.enableAll = function() {
       var didEnable = false;
       for (var k in _rules) {
         if (!_rules[k].enabled) {
@@ -45181,13 +46267,13 @@ ${content}</tr>
       if (didEnable)
         update();
     };
-    features2.disable = function(k) {
+    features.disable = function(k) {
       if (_rules[k] && _rules[k].enabled) {
         _rules[k].disable();
         update();
       }
     };
-    features2.disableAll = function() {
+    features.disableAll = function() {
       var didDisable = false;
       for (var k in _rules) {
         if (_rules[k].enabled) {
@@ -45198,7 +46284,7 @@ ${content}</tr>
       if (didDisable)
         update();
     };
-    features2.toggle = function(k) {
+    features.toggle = function(k) {
       if (_rules[k]) {
         (function(f2) {
           return f2.enabled ? f2.disable() : f2.enable();
@@ -45206,13 +46292,13 @@ ${content}</tr>
         update();
       }
     };
-    features2.resetStats = function() {
+    features.resetStats = function() {
       for (var i2 = 0; i2 < _keys.length; i2++) {
         _rules[_keys[i2]].count = 0;
       }
       dispatch10.call("change");
     };
-    features2.gatherStats = function(d, resolver, dimensions) {
+    features.gatherStats = function(d, resolver, dimensions) {
       var needsRedraw = false;
       var types = utilArrayGroupBy(d, "type");
       var entities = [].concat(types.relation || [], types.way || [], types.node || []);
@@ -45223,12 +46309,12 @@ ${content}</tr>
       _cullFactor = dimensions[0] * dimensions[1] / 1e6;
       for (i2 = 0; i2 < entities.length; i2++) {
         geometry = entities[i2].geometry(resolver);
-        matches = Object.keys(features2.getMatches(entities[i2], resolver, geometry));
+        matches = Object.keys(features.getMatches(entities[i2], resolver, geometry));
         for (j2 = 0; j2 < matches.length; j2++) {
           _rules[matches[j2]].count++;
         }
       }
-      currHidden = features2.hidden();
+      currHidden = features.hidden();
       if (currHidden !== _hidden) {
         _hidden = currHidden;
         needsRedraw = true;
@@ -45236,21 +46322,21 @@ ${content}</tr>
       }
       return needsRedraw;
     };
-    features2.stats = function() {
+    features.stats = function() {
       for (var i2 = 0; i2 < _keys.length; i2++) {
         _stats[_keys[i2]] = _rules[_keys[i2]].count;
       }
       return _stats;
     };
-    features2.clear = function(d) {
+    features.clear = function(d) {
       for (var i2 = 0; i2 < d.length; i2++) {
-        features2.clearEntity(d[i2]);
+        features.clearEntity(d[i2]);
       }
     };
-    features2.clearEntity = function(entity) {
+    features.clearEntity = function(entity) {
       delete _cache4[osmEntity.key(entity)];
     };
-    features2.reset = function() {
+    features.reset = function() {
       Array.from(_deferred2).forEach(function(handle) {
         window.cancelIdleCallback(handle);
         _deferred2.delete(handle);
@@ -45260,7 +46346,7 @@ ${content}</tr>
     function relationShouldBeChecked(relation) {
       return relation.tags.type === "boundary";
     }
-    features2.getMatches = function(entity, resolver, geometry) {
+    features.getMatches = function(entity, resolver, geometry) {
       if (geometry === "vertex" || geometry === "relation" && !relationShouldBeChecked(entity))
         return {};
       var ent = osmEntity.key(entity);
@@ -45275,8 +46361,9 @@ ${content}</tr>
             if (hasMatch)
               continue;
             if (entity.type === "way") {
-              var parents = features2.getParents(entity, resolver, geometry);
-              if (parents.length === 1 && parents[0].isMultipolygon() || parents.length > 0 && parents.every(function(parent) {
+              var parents = features.getParents(entity, resolver, geometry);
+              if (parents.length === 1 && parents[0].isMultipolygon() || // 2b. or belongs only to boundary relations
+              parents.length > 0 && parents.every(function(parent) {
                 return parent.tags.type === "boundary";
               })) {
                 var pkey = osmEntity.key(parents[0]);
@@ -45295,7 +46382,7 @@ ${content}</tr>
       }
       return _cache4[ent].matches;
     };
-    features2.getParents = function(entity, resolver, geometry) {
+    features.getParents = function(entity, resolver, geometry) {
       if (geometry === "point")
         return [];
       var ent = osmEntity.key(entity);
@@ -45313,7 +46400,7 @@ ${content}</tr>
       }
       return _cache4[ent].parents;
     };
-    features2.isHiddenPreset = function(preset, geometry) {
+    features.isHiddenPreset = function(preset, geometry) {
       if (!_hidden.length)
         return false;
       if (!preset.tags)
@@ -45329,36 +46416,36 @@ ${content}</tr>
       }
       return false;
     };
-    features2.isHiddenFeature = function(entity, resolver, geometry) {
+    features.isHiddenFeature = function(entity, resolver, geometry) {
       if (!_hidden.length)
         return false;
       if (!entity.version)
         return false;
       if (_forceVisible[entity.id])
         return false;
-      var matches = Object.keys(features2.getMatches(entity, resolver, geometry));
+      var matches = Object.keys(features.getMatches(entity, resolver, geometry));
       return matches.length && matches.every(function(k) {
-        return features2.hidden(k);
+        return features.hidden(k);
       });
     };
-    features2.isHiddenChild = function(entity, resolver, geometry) {
+    features.isHiddenChild = function(entity, resolver, geometry) {
       if (!_hidden.length)
         return false;
       if (!entity.version || geometry === "point")
         return false;
       if (_forceVisible[entity.id])
         return false;
-      var parents = features2.getParents(entity, resolver, geometry);
+      var parents = features.getParents(entity, resolver, geometry);
       if (!parents.length)
         return false;
       for (var i2 = 0; i2 < parents.length; i2++) {
-        if (!features2.isHidden(parents[i2], resolver, parents[i2].geometry(resolver))) {
+        if (!features.isHidden(parents[i2], resolver, parents[i2].geometry(resolver))) {
           return false;
         }
       }
       return true;
     };
-    features2.hasHiddenConnections = function(entity, resolver) {
+    features.hasHiddenConnections = function(entity, resolver) {
       if (!_hidden.length)
         return false;
       var childNodes, connections;
@@ -45367,36 +46454,36 @@ ${content}</tr>
         connections = [];
       } else {
         childNodes = entity.nodes ? resolver.childNodes(entity) : [];
-        connections = features2.getParents(entity, resolver, entity.geometry(resolver));
+        connections = features.getParents(entity, resolver, entity.geometry(resolver));
       }
       connections = childNodes.reduce(function(result, e) {
         return resolver.isShared(e) ? utilArrayUnion(result, resolver.parentWays(e)) : result;
       }, connections);
       return connections.some(function(e) {
-        return features2.isHidden(e, resolver, e.geometry(resolver));
+        return features.isHidden(e, resolver, e.geometry(resolver));
       });
     };
-    features2.isHidden = function(entity, resolver, geometry) {
+    features.isHidden = function(entity, resolver, geometry) {
       if (!_hidden.length)
         return false;
       if (!entity.version)
         return false;
-      var fn = geometry === "vertex" ? features2.isHiddenChild : features2.isHiddenFeature;
+      var fn = geometry === "vertex" ? features.isHiddenChild : features.isHiddenFeature;
       return fn(entity, resolver, geometry);
     };
-    features2.filter = function(d, resolver) {
+    features.filter = function(d, resolver) {
       if (!_hidden.length)
         return d;
       var result = [];
       for (var i2 = 0; i2 < d.length; i2++) {
         var entity = d[i2];
-        if (!features2.isHidden(entity, resolver, entity.geometry(resolver))) {
+        if (!features.isHidden(entity, resolver, entity.geometry(resolver))) {
           result.push(entity);
         }
       }
       return result;
     };
-    features2.forceVisible = function(entityIDs) {
+    features.forceVisible = function(entityIDs) {
       if (!arguments.length)
         return Object.keys(_forceVisible);
       _forceVisible = {};
@@ -45409,18 +46496,18 @@ ${content}</tr>
           }
         }
       }
-      return features2;
+      return features;
     };
-    features2.init = function() {
+    features.init = function() {
       var storage = corePreferences("disabled-features");
       if (storage) {
         var storageDisabled = storage.replace(/;/g, ",").split(",");
-        storageDisabled.forEach(features2.disable);
+        storageDisabled.forEach(features.disable);
       }
       var hash = utilStringQs(window.location.hash);
       if (hash.disable_features) {
         var hashDisabled = hash.disable_features.replace(/;/g, ",").split(",");
-        hashDisabled.forEach(features2.disable);
+        hashDisabled.forEach(features.disable);
       }
     };
     context.history().on("merge.features", function(newEntities) {
@@ -45432,12 +46519,12 @@ ${content}</tr>
         var entities = [].concat(types.relation || [], types.way || [], types.node || []);
         for (var i2 = 0; i2 < entities.length; i2++) {
           var geometry = entities[i2].geometry(graph);
-          features2.getMatches(entities[i2], graph, geometry);
+          features.getMatches(entities[i2], graph, geometry);
         }
       });
       _deferred2.add(handle);
     });
-    return features2;
+    return features;
   }
 
   // modules/svg/areas.js
@@ -45596,8 +46683,8 @@ ${content}</tr>
       var tags = entity.tags;
       var shouldCopyMultipolygonTags = !entity.hasInterestingTags();
       graph.parentRelations(entity).forEach(function(relation) {
-        var type3 = relation.tags.type;
-        if (type3 === "multipolygon" && shouldCopyMultipolygonTags || type3 === "boundary") {
+        var type2 = relation.tags.type;
+        if (type2 === "multipolygon" && shouldCopyMultipolygonTags || type2 === "boundary") {
           tags = Object.assign({}, relation.tags, tags);
         }
       });
@@ -45612,14 +46699,14 @@ ${content}</tr>
     }
     function getWaySegments() {
       var isActiveWay = way.nodes.indexOf(activeID) !== -1;
-      var features2 = { passive: [], active: [] };
+      var features = { passive: [], active: [] };
       var start2 = {};
       var end = {};
-      var node, type3;
+      var node, type2;
       for (var i2 = 0; i2 < way.nodes.length; i2++) {
         node = graph.entity(way.nodes[i2]);
-        type3 = svgPassiveVertex(node, graph, activeID);
-        end = { node, type: type3 };
+        type2 = svgPassiveVertex(node, graph, activeID);
+        end = { node, type: type2 };
         if (start2.type !== void 0) {
           if (start2.node.id === activeID || end.node.id === activeID) {
           } else if (isActiveWay && (start2.type === 2 || end.type === 2)) {
@@ -45632,9 +46719,9 @@ ${content}</tr>
         }
         start2 = end;
       }
-      return features2;
+      return features;
       function pushActive(start3, end2, index) {
-        features2.active.push({
+        features.active.push({
           type: "Feature",
           id: way.id + "-" + index + "-nope",
           properties: {
@@ -45651,7 +46738,7 @@ ${content}</tr>
         });
       }
       function pushPassive(start3, end2, index) {
-        features2.passive.push({
+        features.passive.push({
           type: "Feature",
           id: way.id + "-" + index,
           properties: {
@@ -45841,6 +46928,12 @@ ${content}</tr>
 
   // modules/svg/tag_pattern.js
   var patterns = {
+    // tag - pattern name
+    // -or-
+    // tag - value - pattern name
+    // -or-
+    // tag - value - rules (optional tag-values, pattern name)
+    // (matches earlier rules first, so fallback should be last entry)
     amenity: {
       grave_yard: "cemetery",
       fountain: "water_standing"
@@ -45861,6 +46954,7 @@ ${content}</tr>
         { leaf_type: "needleleaved", pattern: "forest_needleleaved" },
         { leaf_type: "leafless", pattern: "forest_leafless" },
         { pattern: "forest" }
+        // same as 'leaf_type:mixed'
       ],
       grave_yard: "cemetery",
       grass: "grass",
@@ -45896,6 +46990,7 @@ ${content}</tr>
         { leaf_type: "needleleaved", pattern: "forest_needleleaved" },
         { leaf_type: "leafless", pattern: "forest_leafless" },
         { pattern: "forest" }
+        // same as 'leaf_type:mixed'
       ]
     },
     golf: {
@@ -45967,9 +47062,9 @@ ${content}</tr>
       var base = context.history().base();
       var data = { targets: [], nopes: [] };
       entities.forEach(function(way) {
-        var features2 = svgSegmentWay(way, graph, activeID);
-        data.targets.push.apply(data.targets, features2.passive);
-        data.nopes.push.apply(data.nopes, features2.active);
+        var features = svgSegmentWay(way, graph, activeID);
+        data.targets.push.apply(data.targets, features.passive);
+        data.nopes.push.apply(data.nopes, features.active);
       });
       var targetData = data.targets.filter(getPath);
       var targets = selection2.selectAll(".area.target-allowed").filter(function(d) {
@@ -47013,12 +48108,12 @@ ${content}</tr>
       return _src || "";
     };
     drawData.fitZoom = function() {
-      var features2 = getFeatures(_geojson);
-      if (!features2.length)
+      var features = getFeatures(_geojson);
+      if (!features.length)
         return;
       var map2 = context.map();
       var viewport = map2.trimmedExtent().polygon();
-      var coords = features2.reduce(function(coords2, feature3) {
+      var coords = features.reduce(function(coords2, feature3) {
         var geom = feature3.geometry;
         if (!geom)
           return coords2;
@@ -47084,8 +48179,8 @@ ${content}</tr>
       const extent = context.map().extent();
       _mainFileFetcher.get("imagery").then((d) => {
         const hits = showImagery && d.query.bbox(extent.rectangle(), true) || [];
-        const features2 = hits.map((d2) => d2.features[d2.id]);
-        let imagery = layer.selectAll("path.debug-imagery").data(features2);
+        const features = hits.map((d2) => d2.features[d2.id]);
+        let imagery = layer.selectAll("path.debug-imagery").data(features);
         imagery.exit().remove();
         imagery.enter().append("path").attr("class", "debug-imagery debug orange");
       }).catch(() => {
@@ -47150,6 +48245,7 @@ ${content}</tr>
       _defsSelection.append("marker").attr("id", "ideditor-viewfield-marker").attr("viewBox", "0 0 16 16").attr("refX", 8).attr("refY", 16).attr("markerWidth", 4).attr("markerHeight", 4).attr("markerUnits", "strokeWidth").attr("orient", "auto").append("path").attr("class", "viewfield-marker-path").attr("d", "M 6,14 C 8,13.4 8,13.4 10,14 L 16,3 C 12,0 4,0 0,3 z").attr("fill", "#333").attr("fill-opacity", "0.75").attr("stroke", "#fff").attr("stroke-width", "0.5px").attr("stroke-opacity", "0.75");
       _defsSelection.append("marker").attr("id", "ideditor-viewfield-marker-wireframe").attr("viewBox", "0 0 16 16").attr("refX", 8).attr("refY", 16).attr("markerWidth", 4).attr("markerHeight", 4).attr("markerUnits", "strokeWidth").attr("orient", "auto").append("path").attr("class", "viewfield-marker-path").attr("d", "M 6,14 C 8,13.4 8,13.4 10,14 L 16,3 C 12,0 4,0 0,3 z").attr("fill", "none").attr("stroke", "#fff").attr("stroke-width", "0.5px").attr("stroke-opacity", "0.75");
       var patterns2 = _defsSelection.selectAll("pattern").data([
+        // pattern name, pattern image name
         ["beach", "dots"],
         ["construction", "construction"],
         ["cemetery", "cemetery"],
@@ -49483,9 +50579,9 @@ ${content}</tr>
       var base = context.history().base();
       var data = { targets: [], nopes: [] };
       entities.forEach(function(way) {
-        var features2 = svgSegmentWay(way, graph, activeID);
-        data.targets.push.apply(data.targets, features2.passive);
-        data.nopes.push.apply(data.nopes, features2.active);
+        var features = svgSegmentWay(way, graph, activeID);
+        data.targets.push.apply(data.targets, features.passive);
+        data.nopes.push.apply(data.nopes, features.active);
       });
       var targetData = data.targets.filter(getPath);
       var targets = selection2.selectAll(".line.target-allowed").filter(function(d) {
@@ -49544,7 +50640,8 @@ ${content}</tr>
             var parentMultipolygons = parentRelations.filter(function(relation) {
               return relation.isMultipolygon();
             });
-            if (parentMultipolygons.length > 0 && parentRelations.length === parentMultipolygons.length) {
+            if (parentMultipolygons.length > 0 && // and only multipolygon relations
+            parentRelations.length === parentMultipolygons.length) {
               prefix = "relation area";
             }
           }
@@ -49957,6 +51054,7 @@ ${content}</tr>
   var import_fast_deep_equal8 = __toESM(require_fast_deep_equal());
   function svgVertices(projection2, context) {
     var radiuses = {
+      //       z16-, z17,   z18+,  w/icon
       shadow: [6, 7.5, 7.5, 12],
       stroke: [2.5, 3.5, 3.5, 8],
       fill: [1, 1.5, 1.5, 1.5]
@@ -50201,8 +51299,11 @@ ${content}</tr>
       }
       var sets2 = {
         persistent: _currPersistent,
+        // persistent = important vertices (render always)
         selected: _currSelected,
+        // selected + siblings of selected (render always)
         hovered: _currHover
+        // hovered + siblings of hovered (render only in draw modes)
       };
       var all = Object.assign({}, isMoving ? _currHover : {}, _currSelected, _currPersistent);
       var filterRendered = function(d) {
@@ -50265,8 +51366,8 @@ ${content}</tr>
   }
 
   // modules/util/bind_once.js
-  function utilBindOnce(target, type3, listener, capture) {
-    var typeOnce = type3 + ".once";
+  function utilBindOnce(target, type2, listener, capture) {
+    var typeOnce = type2 + ".once";
     function one2() {
       target.on(typeOnce, null);
       listener.apply(this, arguments);
@@ -50552,7 +51653,8 @@ ${content}</tr>
     var _maxDistance = 20;
     var _pointer;
     function pointerIsValidFor(loc) {
-      return new Date().getTime() - _pointer.startTime <= _maxTimespan && geoVecLength(_pointer.startLoc, loc) <= _maxDistance;
+      return new Date().getTime() - _pointer.startTime <= _maxTimespan && // all pointer events must occur within a small distance of the first pointerdown
+      geoVecLength(_pointer.startLoc, loc) <= _maxDistance;
     }
     function pointerdown(d3_event) {
       if (d3_event.ctrlKey || d3_event.button === 2)
@@ -50717,7 +51819,9 @@ ${content}</tr>
         }
       });
       var detected = utilDetect();
-      if ("GestureEvent" in window && !detected.isMobileWebKit) {
+      if ("GestureEvent" in window && // Listening for gesture events on iOS 13.4+ breaks double-tapping,
+      // but we only need to do this on desktop Safari anyway. – #7694
+      !detected.isMobileWebKit) {
         surface.on("gesturestart.surface", function(d3_event) {
           d3_event.preventDefault();
           _gestureTransformStart = projection2.transform();
@@ -50727,7 +51831,8 @@ ${content}</tr>
       _doubleUpHandler.on("doubleUp.map", function(d3_event, p02) {
         if (!_dblClickZoomEnabled)
           return;
-        if (typeof d3_event.target.__data__ === "object" && !select_default2(d3_event.target).classed("fill"))
+        if (typeof d3_event.target.__data__ === "object" && // or area fills
+        !select_default2(d3_event.target).classed("fill"))
           return;
         var zoomOut2 = d3_event.shiftKey;
         var t = projection2.transform();
@@ -50738,7 +51843,10 @@ ${content}</tr>
         map2.transformEase(t);
       });
       context.on("enter.map", function() {
-        if (!map2.editableDataEnabled(true))
+        if (!map2.editableDataEnabled(
+          true
+          /* skip zoom check */
+        ))
           return;
         if (_isTransformed)
           return;
@@ -50797,7 +51905,7 @@ ${content}</tr>
     function drawEditable(difference, extent) {
       var mode = context.mode();
       var graph = context.graph();
-      var features2 = context.features();
+      var features = context.features();
       var all = context.history().intersects(map2.extent());
       var fullRedraw = false;
       var data;
@@ -50821,9 +51929,9 @@ ${content}</tr>
         filter2 = function(d) {
           return set3.has(d.id);
         };
-        features2.clear(data);
+        features.clear(data);
       } else {
-        if (features2.gatherStats(all, graph, _dimensions)) {
+        if (features.gatherStats(all, graph, _dimensions)) {
           extent = void 0;
         }
         if (extent) {
@@ -50841,7 +51949,7 @@ ${content}</tr>
         }
       }
       if (applyFeatureLayerFilters) {
-        data = features2.filter(data, graph);
+        data = features.filter(data, graph);
       } else {
         context.features().resetStats();
       }
@@ -50882,7 +51990,9 @@ ${content}</tr>
       e.preventDefault();
       var props = {
         deltaMode: 0,
+        // dummy values to ignore in zoomPan
         deltaY: 1,
+        // dummy values to ignore in zoomPan
         clientX: e.clientX,
         clientY: e.clientY,
         screenX: e.screenX,
@@ -50917,7 +52027,9 @@ ${content}</tr>
           dY = sign2 * clamp(
             Math.exp((lines - 1) * 0.75) * 4.000244140625,
             4.000244140625,
+            // min
             350.000244140625
+            // max
           );
           if (detected.os !== "mac") {
             dY *= 5;
@@ -51244,7 +52356,12 @@ ${content}</tr>
     };
     map2.transformEase = function(t2, duration) {
       duration = duration || 250;
-      setTransform(t2, duration, false);
+      setTransform(
+        t2,
+        duration,
+        false
+        /* don't force */
+      );
       return map2;
     };
     map2.zoomToEase = function(obj, duration) {
@@ -51424,20 +52541,20 @@ ${content}</tr>
     photos.dateFilterValue = function(val) {
       return val === _dateFilters[0] ? _fromDate : _toDate;
     };
-    photos.setDateFilter = function(type3, val, updateUrl) {
+    photos.setDateFilter = function(type2, val, updateUrl) {
       var date = val && new Date(val);
       if (date && !isNaN(date)) {
         val = date.toISOString().slice(0, 10);
       } else {
         val = null;
       }
-      if (type3 === _dateFilters[0]) {
+      if (type2 === _dateFilters[0]) {
         _fromDate = val;
         if (_fromDate && _toDate && new Date(_toDate) < new Date(_fromDate)) {
           _toDate = _fromDate;
         }
       }
-      if (type3 === _dateFilters[1]) {
+      if (type2 === _dateFilters[1]) {
         _toDate = val;
         if (_fromDate && _toDate && new Date(_toDate) < new Date(_fromDate)) {
           _fromDate = _toDate;
@@ -52255,10 +53372,10 @@ ${content}</tr>
   // modules/ui/feature_info.js
   function uiFeatureInfo(context) {
     function update(selection2) {
-      var features2 = context.features();
-      var stats = features2.stats();
+      var features = context.features();
+      var stats = features.stats();
       var count = 0;
-      var hiddenList = features2.hidden().map(function(k) {
+      var hiddenList = features.hidden().map(function(k) {
         if (stats[k]) {
           count += stats[k];
           return _t.append("inspector.title_count", {
@@ -52405,8 +53522,11 @@ ${content}</tr>
   // modules/ui/geolocate.js
   function uiGeolocate(context) {
     var _geolocationOptions = {
+      // prioritize speed and power usage over precision
       enableHighAccuracy: false,
+      // don't hang indefinitely getting the location
       timeout: 6e3
+      // 6sec
     };
     var _locating = uiLoading(context).message(_t.html("geolocate.locating")).blocking(true);
     var _layer = context.layers().layer("geolocate");
@@ -52418,7 +53538,11 @@ ${content}</tr>
       if (context.inIntro())
         return;
       if (!_layer.enabled() && !_locating.isShown()) {
-        _timeoutID = setTimeout(error, 1e4);
+        _timeoutID = setTimeout(
+          error,
+          1e4
+          /* 10sec */
+        );
         context.container().call(_locating);
         navigator.geolocation.getCurrentPosition(success, error, _geolocationOptions);
       } else {
@@ -53147,6 +54271,7 @@ ${content}</tr>
   function helpHtml(id2, replacements) {
     if (!helpStringReplacements) {
       helpStringReplacements = {
+        // insert icons corresponding to various UI elements
         point_icon: icon("#iD-icon-point", "inline"),
         line_icon: icon("#iD-icon-line", "inline"),
         area_icon: icon("#iD-icon-area", "inline"),
@@ -53160,6 +54285,7 @@ ${content}</tr>
         undo_icon: icon(_mainLocalizer.textDirection() === "rtl" ? "#iD-icon-redo" : "#iD-icon-undo", "inline"),
         redo_icon: icon(_mainLocalizer.textDirection() === "rtl" ? "#iD-icon-undo" : "#iD-icon-redo", "inline"),
         save_icon: icon("#iD-icon-save", "inline"),
+        // operation icons
         circularize_icon: icon("#iD-operation-circularize", "inline operation"),
         continue_icon: icon("#iD-operation-continue", "inline operation"),
         copy_icon: icon("#iD-operation-copy", "inline operation"),
@@ -53177,6 +54303,7 @@ ${content}</tr>
         rotate_icon: icon("#iD-operation-rotate", "inline operation"),
         split_icon: icon("#iD-operation-split", "inline operation"),
         straighten_icon: icon("#iD-operation-straighten", "inline operation"),
+        // interaction icons
         leftclick: icon("#iD-walkthrough-mouse-left", "inline operation"),
         rightclick: icon("#iD-walkthrough-mouse-right", "inline operation"),
         mousewheel_icon: icon("#iD-walkthrough-mousewheel", "inline operation"),
@@ -53185,6 +54312,7 @@ ${content}</tr>
         longpress_icon: icon("#iD-walkthrough-longpress", "inline operation"),
         touchdrag_icon: icon("#iD-walkthrough-touchdrag", "inline operation"),
         pinch_icon: icon("#iD-walkthrough-pinch-apart", "inline operation"),
+        // insert keys; may be localized and platform-dependent
         shift: uiCmd.display("\u21E7"),
         alt: uiCmd.display("\u2325"),
         return: uiCmd.display("\u21B5"),
@@ -53193,6 +54321,7 @@ ${content}</tr>
         add_note_key: _t.html("modes.add_note.key"),
         help_key: _t.html("help.key"),
         shortcuts_key: _t.html("shortcuts.toggle.key"),
+        // reference localized UI labels directly so that they'll always match
         save: _t.html("save.title"),
         undo: _t.html("undo.title"),
         redo: _t.html("redo.title"),
@@ -53623,7 +54752,7 @@ ${content}</tr>
         if (context.map().zoom() !== zoomStart) {
           context.map().on("move.intro", null);
           timeout2(function() {
-            continueTo(features2);
+            continueTo(features);
           }, 3e3);
         }
       });
@@ -53632,7 +54761,7 @@ ${content}</tr>
         nextStep();
       }
     }
-    function features2() {
+    function features() {
       var onClick = function() {
         continueTo(pointsLinesAreas);
       };
@@ -57421,7 +58550,7 @@ ${content}</tr>
         var val = _caseSensitive ? value() : value().toLowerCase();
         if (!val)
           return;
-        if (!isNaN(parseFloat(val)) && isFinite(val))
+        if (isFinite(val))
           return;
         const suggestionValues = [];
         _suggestions.forEach((s) => {
@@ -58127,6 +59256,41 @@ ${content}</tr>
     return utilRebind(check, dispatch10, "on");
   }
 
+  // modules/ui/length_indicator.js
+  function uiLengthIndicator(maxChars) {
+    var _wrap = select_default2(null);
+    var _tooltip = uiPopover("tooltip max-length-warning").placement("bottom").hasArrow(true).content(() => (selection2) => {
+      selection2.text("");
+      selection2.call(svgIcon("#iD-icon-alert", "inline"));
+      selection2.call(_t.append("inspector.max_length_reached", { maxChars }));
+    });
+    var _silent = false;
+    var lengthIndicator = function(selection2) {
+      _wrap = selection2.selectAll("span.length-indicator-wrap").data([0]);
+      _wrap = _wrap.enter().append("span").merge(_wrap).classed("length-indicator-wrap", true);
+      selection2.call(_tooltip);
+    };
+    lengthIndicator.update = function(val) {
+      const strLen = utilUnicodeCharsCount(utilCleanOsmString(val, Number.POSITIVE_INFINITY));
+      let indicator = _wrap.selectAll("span.length-indicator").data([strLen]);
+      indicator.enter().append("span").merge(indicator).classed("length-indicator", true).classed("limit-reached", (d) => d > maxChars).style("border-right-width", (d) => `${Math.abs(maxChars - d) * 2}px`).style("margin-right", (d) => d > maxChars ? `${(maxChars - d) * 2}px` : 0).style("opacity", (d) => d > maxChars * 0.8 ? Math.min(1, (d / maxChars - 0.8) / (1 - 0.8)) : 0).style("pointer-events", (d) => d > maxChars * 0.8 ? null : "none");
+      if (_silent)
+        return;
+      if (strLen > maxChars) {
+        _tooltip.show();
+      } else {
+        _tooltip.hide();
+      }
+    };
+    lengthIndicator.silent = function(val) {
+      if (!arguments.length)
+        return _silent;
+      _silent = val;
+      return lengthIndicator;
+    };
+    return lengthIndicator;
+  }
+
   // modules/ui/fields/combo.js
   var valueIcons = {
     "crossing:markings": [
@@ -58156,6 +59320,7 @@ ${content}</tr>
     var _container = select_default2(null);
     var _inputWrap = select_default2(null);
     var _input = select_default2(null);
+    var _lengthIndicator = uiLengthIndicator(context.maxCharsForTagValue());
     var _comboData = [];
     var _multiData = [];
     var _entityIDs = [];
@@ -58188,19 +59353,26 @@ ${content}</tr>
       if (field.type === "typeCombo" && !dval) {
         return "yes";
       }
+      return restrictTagValueSpelling(dval) || void 0;
+    }
+    function restrictTagValueSpelling(dval) {
       if (_snake_case) {
         dval = snake(dval);
       }
       if (!field.caseSensitive) {
         dval = dval.toLowerCase();
       }
-      return dval || void 0;
+      return dval;
+    }
+    function getLabelId(field2, v) {
+      return field2.hasTextForStringId(`options.${v}.title`) ? `options.${v}.title` : `options.${v}`;
     }
     function displayValue(tval) {
       tval = tval || "";
       var stringsField = field.resolveReference("stringsCrossReference");
-      if (stringsField.hasTextForStringId("options." + tval)) {
-        return stringsField.t("options." + tval, { default: tval });
+      const labelId = getLabelId(stringsField, tval);
+      if (stringsField.hasTextForStringId(labelId)) {
+        return stringsField.t(labelId, { default: tval });
       }
       if (field.type === "typeCombo" && tval.toLowerCase() === "yes") {
         return "";
@@ -58210,8 +59382,9 @@ ${content}</tr>
     function renderValue(tval) {
       tval = tval || "";
       var stringsField = field.resolveReference("stringsCrossReference");
-      if (stringsField.hasTextForStringId("options." + tval)) {
-        return stringsField.t.append("options." + tval, { default: tval });
+      const labelId = getLabelId(stringsField, tval);
+      if (stringsField.hasTextForStringId(labelId)) {
+        return stringsField.t.append(labelId, { default: tval });
       }
       if (field.type === "typeCombo" && tval.toLowerCase() === "yes") {
         tval = "";
@@ -58242,12 +59415,13 @@ ${content}</tr>
       if (!(field.options || stringsField.options))
         return [];
       return (field.options || stringsField.options).map(function(v) {
+        const labelId = getLabelId(stringsField, v);
         return {
           key: v,
-          value: stringsField.t("options." + v, { default: v }),
-          title: v,
-          display: addComboboxIcons(stringsField.t.append("options." + v, { default: v }), v),
-          klass: stringsField.hasTextForStringId("options." + v) ? "" : "raw-option"
+          value: stringsField.t(labelId, { default: v }),
+          title: stringsField.t(`options.${v}.description`, { default: v }),
+          display: addComboboxIcons(stringsField.t.append(labelId, { default: v }), v),
+          klass: stringsField.hasTextForStringId(labelId) ? "" : "raw-option"
         };
       });
     }
@@ -58282,33 +59456,35 @@ ${content}</tr>
       services.taginfo[fn](params, function(err, data) {
         if (err)
           return;
-        data = data.filter(function(d) {
-          return field.type !== "typeCombo" || d.value !== "yes";
+        data = data.filter((d) => field.type !== "typeCombo" || d.value !== "yes");
+        data = data.filter((d) => {
+          var value = d.value;
+          if (_isMulti) {
+            value = value.slice(field.key.length);
+          }
+          return value === restrictTagValueSpelling(value);
         });
         var deprecatedValues = osmEntity.deprecatedTagValuesByKey(_dataDeprecated)[field.key];
         if (deprecatedValues) {
-          data = data.filter(function(d) {
-            return deprecatedValues.indexOf(d.value) === -1;
-          });
+          data = data.filter((d) => !deprecatedValues.includes(d.value));
         }
         if (hasCountryPrefix) {
-          data = data.filter(function(d) {
-            return d.value.toLowerCase().indexOf(_countryCode + ":") === 0;
-          });
+          data = data.filter((d) => d.value.toLowerCase().indexOf(_countryCode + ":") === 0);
         }
         const additionalOptions = (field.options || stringsField.options || []).filter((v) => !data.some((dv) => dv.value === (_isMulti ? field.key + v : v))).map((v) => ({ value: v }));
         _container.classed("empty-combobox", data.length === 0);
         _comboData = data.concat(additionalOptions).map(function(d) {
-          var k = d.value;
+          var v = d.value;
           if (_isMulti)
-            k = k.replace(field.key, "");
-          var isLocalizable = stringsField.hasTextForStringId("options." + k);
-          var label = stringsField.t("options." + k, { default: k });
+            v = v.replace(field.key, "");
+          const labelId = getLabelId(stringsField, v);
+          var isLocalizable = stringsField.hasTextForStringId(labelId);
+          var label = stringsField.t(labelId, { default: v });
           return {
-            key: k,
+            key: v,
             value: label,
-            display: addComboboxIcons(stringsField.t.append("options." + k, { default: k }), k),
-            title: isLocalizable ? k : d.title !== label ? d.title : "",
+            title: stringsField.t(`options.${v}.description`, { default: isLocalizable ? v : d.title !== label ? d.title : "" }),
+            display: addComboboxIcons(stringsField.t.append(labelId, { default: v }), v),
             klass: isLocalizable ? "" : "raw-option"
           };
         });
@@ -58363,7 +59539,8 @@ ${content}</tr>
         if (_isMulti) {
           vals = [tagValue(utilGetSetValue(_input))];
         } else if (_isSemi) {
-          val = tagValue(utilGetSetValue(_input).replace(/,/g, ";")) || "";
+          val = tagValue(utilGetSetValue(_input)) || "";
+          val = val.replace(/,/g, ";");
           vals = val.split(";");
         }
         vals = vals.filter(Boolean);
@@ -58414,13 +59591,14 @@ ${content}</tr>
         }).filter(Boolean);
         arr = utilArrayUniq(arr);
         t[field.key] = arr.length ? arr.join(";") : void 0;
+        _lengthIndicator.update(t[field.key]);
       }
       dispatch10.call("change", this, t);
     }
     function combo(selection2) {
       _container = selection2.selectAll(".form-field-input-wrap").data([0]);
-      var type3 = _isMulti || _isSemi ? "multicombo" : "combo";
-      _container = _container.enter().append("div").attr("class", "form-field-input-wrap form-field-input-" + type3).merge(_container);
+      var type2 = _isMulti || _isSemi ? "multicombo" : "combo";
+      _container = _container.enter().append("div").attr("class", "form-field-input-wrap form-field-input-" + type2).merge(_container);
       if (_isMulti || _isSemi) {
         _container = _container.selectAll(".chiplist").data([0]);
         var listClass = "chiplist";
@@ -58439,13 +59617,23 @@ ${content}</tr>
         _input = _container.selectAll("input").data([0]);
       }
       _input = _input.enter().append("input").attr("type", "text").attr("id", field.domId).call(utilNoAuto).call(initCombo, selection2).merge(_input);
+      if (_isSemi) {
+        _inputWrap.call(_lengthIndicator);
+      } else if (!_isMulti) {
+        _container.call(_lengthIndicator);
+      }
       if (_isNetwork) {
         var extent = combinedEntityExtent();
         var countryCode = extent && iso1A2Code(extent.center());
         _countryCode = countryCode && countryCode.toLowerCase();
       }
       _input.on("change", change).on("blur", change).on("input", function() {
-        updateIcon(utilGetSetValue(_input));
+        let val = utilGetSetValue(_input);
+        updateIcon(val);
+        if (_isSemi && _tags[field.key]) {
+          val += ";" + _tags[field.key];
+        }
+        _lengthIndicator.update(val);
       });
       _input.on("keydown.field", function(d3_event) {
         switch (d3_event.keyCode) {
@@ -58582,7 +59770,7 @@ ${content}</tr>
           return displayValue(val);
         }).filter(Boolean);
         var showsValue = !isMixed && tags[field.key] && !(field.type === "typeCombo" && tags[field.key] === "yes");
-        var isRawValue = showsValue && !stringsField.hasTextForStringId("options." + tags[field.key]);
+        var isRawValue = showsValue && !stringsField.hasTextForStringId(`options.${tags[field.key]}`) && !stringsField.hasTextForStringId(`options.${tags[field.key]}.title`);
         var isKnownValue = showsValue && !isRawValue;
         var isReadOnly = !_allowCustomValues || isKnownValue;
         utilGetSetValue(_input, !isMixed ? displayValue(tags[field.key]) : "").classed("raw-value", isRawValue).classed("known-value", isKnownValue).attr("readonly", isReadOnly ? "readonly" : void 0).attr("title", isMixed ? mixedValues.join("\n") : void 0).attr("placeholder", isMixed ? _t("inspector.multiple_values") : _staticPlaceholder || "").classed("mixed", isMixed).on("keydown.deleteCapture", function(d3_event) {
@@ -58597,6 +59785,9 @@ ${content}</tr>
         if (!Array.isArray(tags[field.key])) {
           updateIcon(tags[field.key]);
         }
+        if (!isMixed) {
+          _lengthIndicator.update(tags[field.key]);
+        }
       }
     };
     function registerDragAndDrop(selection2) {
@@ -58610,7 +59801,8 @@ ${content}</tr>
           targetIndex = null;
         }).on("drag", function(d3_event) {
           var x = d3_event.x - dragOrigin.x, y = d3_event.y - dragOrigin.y;
-          if (!select_default2(this).classed("dragging") && Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2)) <= 5)
+          if (!select_default2(this).classed("dragging") && // don't display drag until dragging beyond a distance threshold
+          Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2)) <= 5)
             return;
           var index = selection2.nodes().indexOf(this);
           select_default2(this).classed("dragging", true);
@@ -58704,9 +59896,11 @@ ${content}</tr>
     var input = select_default2(null);
     var outlinkButton = select_default2(null);
     var wrap2 = select_default2(null);
+    var _lengthIndicator = uiLengthIndicator(context.maxCharsForTagValue());
     var _entityIDs = [];
     var _tags;
     var _phoneFormats = {};
+    const isDirectionField = field.key.split(":").some((keyPart) => keyPart === "direction");
     if (field.type === "tel") {
       _mainFileFetcher.get("phone_formats").then(function(d) {
         _phoneFormats = d;
@@ -58736,6 +59930,7 @@ ${content}</tr>
       input = wrap2.selectAll("input").data([0]);
       input = input.enter().append("input").attr("type", field.type === "identifier" ? "text" : field.type).attr("id", field.domId).classed(field.type, true).call(utilNoAuto).merge(input);
       input.classed("disabled", !!isLocked).attr("readonly", isLocked || null).on("input", change(true)).on("blur", change()).on("change", change());
+      wrap2.call(_lengthIndicator);
       if (field.type === "tel") {
         updatePhonePlaceholder();
       } else if (field.type === "number") {
@@ -58751,16 +59946,28 @@ ${content}</tr>
           return _t(`inspector.${which}`);
         }).merge(buttons).on("click", function(d3_event, d) {
           d3_event.preventDefault();
+          var isMixed = Array.isArray(_tags[field.key]);
+          if (isMixed)
+            return;
           var raw_vals = input.node().value || "0";
           var vals = raw_vals.split(";");
           vals = vals.map(function(v) {
-            var num = parseFloat(v.trim(), 10);
-            if (isFinite(num))
-              return clamped(num + d);
-            const compassDir = cardinal[v.trim().toLowerCase()];
-            if (compassDir !== void 0)
-              return clamped(compassDir + d);
-            return v.trim();
+            var num = Number(v);
+            if (isDirectionField) {
+              const compassDir = cardinal[v.trim().toLowerCase()];
+              if (compassDir !== void 0) {
+                num = compassDir;
+              }
+            }
+            if (!isFinite(num)) {
+              return v.trim();
+            }
+            num += d;
+            if (isDirectionField) {
+              num = (num % 360 + 360) % 360;
+            }
+            const numDecimals = v.includes(".") ? v.split(".")[1].length : 0;
+            return clamped(num).toFixed(numDecimals);
           });
           input.node().value = vals.join(";");
           change()();
@@ -58871,7 +60078,7 @@ ${content}</tr>
           if (field.type === "number" && val) {
             var vals = val.split(";");
             vals = vals.map(function(v) {
-              var num = parseFloat(v.trim(), 10);
+              var num = Number(v);
               return isFinite(num) ? clamped(num) : v.trim();
             });
             val = vals.join(";");
@@ -58892,6 +60099,16 @@ ${content}</tr>
       _tags = tags;
       var isMixed = Array.isArray(tags[field.key]);
       utilGetSetValue(input, !isMixed && tags[field.key] ? tags[field.key] : "").attr("title", isMixed ? tags[field.key].filter(Boolean).join("\n") : void 0).attr("placeholder", isMixed ? _t("inspector.multiple_values") : field.placeholder() || _t("inspector.unknown")).classed("mixed", isMixed);
+      if (field.type === "number") {
+        const buttons = wrap2.selectAll(".increment, .decrement");
+        if (isMixed) {
+          buttons.attr("disabled", "disabled").classed("disabled", true);
+        } else {
+          var raw_vals = tags[field.key] || "0";
+          const canIncDec = raw_vals.split(";").some((val) => isFinite(Number(val)) || isDirectionField && cardinal[val.trim().toLowerCase()]);
+          buttons.attr("disabled", canIncDec ? null : "disabled").classed("disabled", !canIncDec);
+        }
+      }
       if (field.type === "tel")
         updatePhonePlaceholder();
       if (field.key.split(":").includes("colour"))
@@ -58900,6 +60117,9 @@ ${content}</tr>
         var disabled = !validIdentifierValueForLink();
         outlinkButton.classed("disabled", disabled);
       }
+      if (!isMixed) {
+        _lengthIndicator.update(tags[field.key]);
+      }
     };
     i2.focus = function() {
       var node = input.node();
@@ -58949,7 +60169,7 @@ ${content}</tr>
       tag[d] = value || void 0;
       dispatch10.call("change", this, tag);
     }
-    access.options = function(type3) {
+    access.options = function(type2) {
       var options2 = [
         "yes",
         "no",
@@ -58961,10 +60181,10 @@ ${content}</tr>
         "permit",
         "unknown"
       ];
-      if (type3 === "access") {
+      if (type2 === "access") {
         options2 = options2.filter((v) => v !== "yes" && v !== "designated");
       }
-      if (type3 === "bicycle") {
+      if (type2 === "bicycle") {
         options2.splice(options2.length - 4, 0, "dismount");
       }
       var stringsField = field.resolveReference("stringsCrossReference");
@@ -59418,13 +60638,14 @@ ${content}</tr>
     return utilRebind(address, dispatch10, "on");
   }
 
-  // modules/ui/fields/cycleway.js
-  function uiFieldCycleway(field, context) {
+  // modules/ui/fields/directional_combo.js
+  function uiFieldDirectionalCombo(field, context) {
     var dispatch10 = dispatch_default("change");
     var items = select_default2(null);
     var wrap2 = select_default2(null);
     var _tags;
-    function cycleway(selection2) {
+    var _combos = {};
+    function directionalCombo(selection2) {
       function stripcolon(s) {
         return s.replace(":", "");
       }
@@ -59432,100 +60653,61 @@ ${content}</tr>
       wrap2 = wrap2.enter().append("div").attr("class", "form-field-input-wrap form-field-input-" + field.type).merge(wrap2);
       var div = wrap2.selectAll("ul").data([0]);
       div = div.enter().append("ul").attr("class", "rows").merge(div);
-      var keys = ["cycleway:left", "cycleway:right"];
+      var keys = field.keys.slice(1);
       items = div.selectAll("li").data(keys);
       var enter = items.enter().append("li").attr("class", function(d) {
-        return "labeled-input preset-cycleway-" + stripcolon(d);
+        return "labeled-input preset-directionalcombo-" + stripcolon(d);
       });
-      enter.append("span").attr("class", "label preset-label-cycleway").attr("for", function(d) {
-        return "preset-input-cycleway-" + stripcolon(d);
+      enter.append("span").attr("class", "label preset-label-directionalcombo").attr("for", function(d) {
+        return "preset-input-directionalcombo-" + stripcolon(d);
       }).html(function(d) {
         return field.t.html("types." + d);
       });
-      enter.append("div").attr("class", "preset-input-cycleway-wrap").append("input").attr("type", "text").attr("class", function(d) {
-        return "preset-input-cycleway preset-input-" + stripcolon(d);
-      }).call(utilNoAuto).each(function(d) {
-        select_default2(this).call(
-          uiCombobox(context, "cycleway-" + stripcolon(d)).data(cycleway.options(d))
-        );
-      });
-      items = items.merge(enter);
-      wrap2.selectAll(".preset-input-cycleway").on("change", change).on("blur", change);
-    }
-    function change(d3_event, key) {
-      var newValue = context.cleanTagValue(utilGetSetValue(select_default2(this)));
-      if (!newValue && (Array.isArray(_tags.cycleway) || Array.isArray(_tags[key])))
-        return;
-      if (newValue === "none" || newValue === "") {
-        newValue = void 0;
-      }
-      var otherKey = key === "cycleway:left" ? "cycleway:right" : "cycleway:left";
-      var otherValue = typeof _tags.cycleway === "string" ? _tags.cycleway : _tags[otherKey];
-      if (otherValue && Array.isArray(otherValue)) {
-        otherValue = otherValue[0];
-      }
-      if (otherValue === "none" || otherValue === "") {
-        otherValue = void 0;
-      }
-      var tag = {};
-      if (newValue === otherValue) {
-        tag = {
-          cycleway: newValue,
-          "cycleway:left": void 0,
-          "cycleway:right": void 0
-        };
-      } else {
-        tag = {
-          cycleway: void 0
-        };
-        tag[key] = newValue;
-        tag[otherKey] = otherValue;
-      }
-      dispatch10.call("change", this, tag);
-    }
-    cycleway.options = function() {
-      var stringsField = field.resolveReference("stringsCrossReference");
-      return field.options.map(function(option) {
-        return {
-          title: stringsField.t("options." + option + ".description"),
-          value: option
+      enter.append("div").attr("class", "preset-input-directionalcombo-wrap form-field-input-wrap").each(function(key) {
+        const subField = {
+          ...field,
+          type: "combo",
+          key
         };
+        const combo = uiFieldCombo(subField, context);
+        combo.on("change", (t) => change(key, t[key]));
+        _combos[key] = combo;
+        select_default2(this).call(combo);
       });
-    };
-    cycleway.tags = function(tags) {
-      _tags = tags;
-      var commonValue = typeof tags.cycleway === "string" && tags.cycleway;
-      utilGetSetValue(items.selectAll(".preset-input-cycleway"), function(d) {
-        if (commonValue)
-          return commonValue;
-        return !tags.cycleway && typeof tags[d] === "string" ? tags[d] : "";
-      }).attr("title", function(d) {
-        if (Array.isArray(tags.cycleway) || Array.isArray(tags[d])) {
-          var vals = [];
-          if (Array.isArray(tags.cycleway)) {
-            vals = vals.concat(tags.cycleway);
-          }
-          if (Array.isArray(tags[d])) {
-            vals = vals.concat(tags[d]);
-          }
-          return vals.filter(Boolean).join("\n");
-        }
-        return null;
-      }).attr("placeholder", function(d) {
-        if (Array.isArray(tags.cycleway) || Array.isArray(tags[d])) {
-          return _t("inspector.multiple_values");
+      items = items.merge(enter);
+      wrap2.selectAll(".preset-input-directionalcombo").on("change", change).on("blur", change);
+    }
+    function change(key, newValue) {
+      const commonKey = field.keys[0];
+      const otherKey = key === field.keys[1] ? field.keys[2] : field.keys[1];
+      dispatch10.call("change", this, (tags) => {
+        const otherValue = tags[otherKey] || tags[commonKey];
+        if (newValue === otherValue) {
+          tags[commonKey] = newValue;
+          delete tags[key];
+          delete tags[otherKey];
+        } else {
+          tags[key] = newValue;
+          delete tags[commonKey];
+          tags[otherKey] = otherValue;
         }
-        return field.placeholder();
-      }).classed("mixed", function(d) {
-        return Array.isArray(tags.cycleway) || Array.isArray(tags[d]);
+        return tags;
       });
+    }
+    directionalCombo.tags = function(tags) {
+      _tags = tags;
+      const commonKey = field.keys[0];
+      for (let key in _combos) {
+        const uniqueValues = [...new Set([].concat(_tags[commonKey]).concat(_tags[key]).filter(Boolean))];
+        _combos[key].tags({ [key]: uniqueValues.length > 1 ? uniqueValues : uniqueValues[0] });
+      }
     };
-    cycleway.focus = function() {
+    directionalCombo.focus = function() {
       var node = wrap2.selectAll("input").node();
       if (node)
         node.focus();
     };
-    return utilRebind(cycleway, dispatch10, "on");
+    return utilRebind(directionalCombo, dispatch10, "on");
   }
 
   // modules/ui/fields/lanes.js
@@ -59592,6 +60774,7 @@ ${content}</tr>
     var wikipedia = services.wikipedia;
     var input = select_default2(null);
     var localizedInputs = select_default2(null);
+    var _lengthIndicator = uiLengthIndicator(context.maxCharsForTagValue());
     var _countryCode;
     var _tags;
     _mainFileFetcher.get("languages").then(loadLanguagesArray).catch(function() {
@@ -59612,7 +60795,9 @@ ${content}</tr>
         return;
       var replacements = {
         sr: "sr-Cyrl",
+        // in OSM, `sr` implies Cyrillic
         "sr-Cyrl": false
+        // `sr-Cyrl` isn't used in OSM
       };
       for (var code in dataLanguages) {
         if (replacements[code] === false)
@@ -59688,6 +60873,7 @@ ${content}</tr>
       input = wrap2.selectAll(".localized-main").data([0]);
       input = input.enter().append("input").attr("type", "text").attr("id", field.domId).attr("class", "localized-main").call(utilNoAuto).merge(input);
       input.classed("disabled", !!isLocked).attr("readonly", isLocked || null).on("input", change(true)).on("blur", change()).on("change", change());
+      wrap2.call(_lengthIndicator);
       var translateButton = wrap2.selectAll(".localized-add").data([0]);
       translateButton = translateButton.enter().append("button").attr("class", "localized-add form-field-button").attr("aria-label", _t("icons.plus")).call(svgIcon("#iD-icon-plus")).merge(translateButton);
       translateButton.classed("disabled", !!isLocked).call(isLocked ? _buttonTip.destroy : _buttonTip).on("click", addNew);
@@ -59863,6 +61049,9 @@ ${content}</tr>
       utilGetSetValue(input, typeof tags[field.key] === "string" ? tags[field.key] : "").attr("title", isMixed ? tags[field.key].filter(Boolean).join("\n") : void 0).attr("placeholder", isMixed ? _t("inspector.multiple_values") : field.placeholder()).classed("mixed", isMixed);
       calcMultilingual(tags);
       _selection.call(localized);
+      if (!isMixed) {
+        _lengthIndicator.update(tags[field.key]);
+      }
     };
     localized.focus = function() {
       input.node().focus();
@@ -60119,7 +61308,7 @@ ${content}</tr>
     }
     function structureExtras(selection2, tags) {
       var selected = selectedKey() || tags.layer !== void 0;
-      var type3 = _mainPresetIndex.field(selected);
+      var type2 = _mainPresetIndex.field(selected);
       var layer = _mainPresetIndex.field("layer");
       var showLayer = selected === "bridge" || selected === "tunnel" || tags.layer !== void 0;
       var extrasWrap = selection2.selectAll(".structure-extras-wrap").data(selected ? [0] : []);
@@ -60127,9 +61316,9 @@ ${content}</tr>
       extrasWrap = extrasWrap.enter().append("div").attr("class", "structure-extras-wrap").merge(extrasWrap);
       var list = extrasWrap.selectAll("ul").data([0]);
       list = list.enter().append("ul").attr("class", "rows").merge(list);
-      if (type3) {
+      if (type2) {
         if (!typeField || typeField.id !== selected) {
-          typeField = uiField(context, type3, _entityIDs, { wrap: false }).on("change", changeType);
+          typeField = uiField(context, type2, _entityIDs, { wrap: false }).on("change", changeType);
         }
         typeField.tags(tags);
       } else {
@@ -60307,9 +61496,11 @@ ${content}</tr>
         _graph = context.graph();
         _intersection = osmIntersection(_graph, _vertexID, _maxDistance);
       }
-      var isOK = _intersection && _intersection.vertices.length && _intersection.vertices.filter(function(vertex) {
+      var isOK = _intersection && _intersection.vertices.length && // has vertices
+      _intersection.vertices.filter(function(vertex) {
         return vertex.id === _vertexID;
-      }).length && _intersection.ways.length > 2 && _intersection.ways.filter(function(way) {
+      }).length && _intersection.ways.length > 2 && // has more than 2 ways
+      _intersection.ways.filter(function(way) {
         return way.__to;
       }).length > 1;
       select_default2(selection2.node().parentNode).classed("hide", !isOK);
@@ -60611,6 +61802,7 @@ ${content}</tr>
         var opts;
         if (isImperial) {
           var distToFeet = {
+            // imprecise conversion for prettier display
             20: 70,
             25: 85,
             30: 100,
@@ -60636,8 +61828,8 @@ ${content}</tr>
       var entity = graph.entity(entityID);
       var name = utilDisplayName(entity) || "";
       var matched = _mainPresetIndex.match(entity, graph);
-      var type3 = matched && matched.name() || utilDisplayType(entity.id);
-      return name || type3;
+      var type2 = matched && matched.name() || utilDisplayType(entity.id);
+      return name || type2;
     }
     restrictions.entityIDs = function(val) {
       _intersection = null;
@@ -60663,29 +61855,34 @@ ${content}</tr>
   function uiFieldTextarea(field, context) {
     var dispatch10 = dispatch_default("change");
     var input = select_default2(null);
+    var _lengthIndicator = uiLengthIndicator(context.maxCharsForTagValue()).silent(field.usage === "changeset" && field.key === "comment");
     var _tags;
     function textarea(selection2) {
       var wrap2 = selection2.selectAll(".form-field-input-wrap").data([0]);
-      wrap2 = wrap2.enter().append("div").attr("class", "form-field-input-wrap form-field-input-" + field.type).merge(wrap2);
+      wrap2 = wrap2.enter().append("div").attr("class", "form-field-input-wrap form-field-input-" + field.type).style("position", "relative").merge(wrap2);
       input = wrap2.selectAll("textarea").data([0]);
       input = input.enter().append("textarea").attr("id", field.domId).call(utilNoAuto).on("input", change(true)).on("blur", change()).on("change", change()).merge(input);
-    }
-    function change(onInput) {
-      return function() {
-        var val = utilGetSetValue(input);
-        if (!onInput)
-          val = context.cleanTagValue(val);
-        if (!val && Array.isArray(_tags[field.key]))
-          return;
-        var t = {};
-        t[field.key] = val || void 0;
-        dispatch10.call("change", this, t, onInput);
-      };
+      wrap2.call(_lengthIndicator);
+      function change(onInput) {
+        return function() {
+          var val = utilGetSetValue(input);
+          if (!onInput)
+            val = context.cleanTagValue(val);
+          if (!val && Array.isArray(_tags[field.key]))
+            return;
+          var t = {};
+          t[field.key] = val || void 0;
+          dispatch10.call("change", this, t, onInput);
+        };
+      }
     }
     textarea.tags = function(tags) {
       _tags = tags;
       var isMixed = Array.isArray(tags[field.key]);
       utilGetSetValue(input, !isMixed && tags[field.key] ? tags[field.key] : "").attr("title", isMixed ? tags[field.key].filter(Boolean).join("\n") : void 0).attr("placeholder", isMixed ? _t("inspector.multiple_values") : field.placeholder() || _t("inspector.unknown")).classed("mixed", isMixed);
+      if (!isMixed) {
+        _lengthIndicator.update(tags[field.key]);
+      }
     };
     textarea.focus = function() {
       input.node().focus();
@@ -61110,7 +62307,10 @@ ${content}</tr>
           const defaultLangInfo = defaultLanguageInfo();
           _wikiURL = `https://${defaultLangInfo[2]}.wikipedia.org/w/index.php?fulltext=1&search=${value}`;
         } else {
-          const shownOrDefaultLangInfo = language(true);
+          const shownOrDefaultLangInfo = language(
+            true
+            /* skipEnglishFallback */
+          );
           utilGetSetValue(_langInput, shownOrDefaultLangInfo[1]);
           _wikiURL = "";
         }
@@ -61136,8 +62336,9 @@ ${content}</tr>
     check: uiFieldCheck,
     colour: uiFieldText,
     combo: uiFieldCombo,
-    cycleway: uiFieldCycleway,
+    cycleway: uiFieldDirectionalCombo,
     defaultCheck: uiFieldCheck,
+    directionalCombo: uiFieldDirectionalCombo,
     email: uiFieldText,
     identifier: uiFieldText,
     lanes: uiFieldLanes,
@@ -61353,7 +62554,8 @@ ${content}</tr>
           return false;
       }
       var prerequisiteTag = field.prerequisiteTag;
-      if (entityIDs && !tagsContainFieldKey() && prerequisiteTag) {
+      if (entityIDs && !tagsContainFieldKey() && // ignore tagging prerequisites if a value is already present
+      prerequisiteTag) {
         if (!entityIDs.every(function(entityID) {
           var entity = context.graph().entity(entityID);
           if (prerequisiteTag.key) {
@@ -61530,12 +62732,34 @@ ${content}</tr>
           });
         }
       }
-      var hasGoogle = _tags.comment.match(/google/i);
-      var commentWarning = selection2.select(".form-field-comment").selectAll(".comment-warning").data(hasGoogle ? [0] : []);
+      const warnings = [];
+      if (_tags.comment.match(/google/i)) {
+        warnings.push({
+          id: 'contains "google"',
+          msg: _t.append("commit.google_warning"),
+          link: _t("commit.google_warning_link")
+        });
+      }
+      const maxChars = context.maxCharsForTagValue();
+      const strLen = utilUnicodeCharsCount(utilCleanOsmString(_tags.comment, Number.POSITIVE_INFINITY));
+      if (strLen > maxChars || false) {
+        warnings.push({
+          id: "message too long",
+          msg: _t.append("commit.changeset_comment_length_warning", { maxChars })
+        });
+      }
+      var commentWarning = selection2.select(".form-field-comment").selectAll(".comment-warning").data(warnings, (d) => d.id);
       commentWarning.exit().transition().duration(200).style("opacity", 0).remove();
-      var commentEnter = commentWarning.enter().insert("div", ".tag-reference-body").attr("class", "field-warning comment-warning").style("opacity", 0);
-      commentEnter.append("a").attr("target", "_blank").call(svgIcon("#iD-icon-alert", "inline")).attr("href", _t("commit.google_warning_link")).append("span").call(_t.append("commit.google_warning"));
+      var commentEnter = commentWarning.enter().insert("div", ".comment-warning").attr("class", "comment-warning field-warning").style("opacity", 0);
+      commentEnter.call(svgIcon("#iD-icon-alert", "inline")).append("span");
       commentEnter.transition().duration(200).style("opacity", 1);
+      commentWarning.merge(commentEnter).selectAll("div > span").text("").each(function(d) {
+        let selection3 = select_default2(this);
+        if (d.link) {
+          selection3 = selection3.append("a").attr("target", "_blank").attr("href", d.link);
+        }
+        selection3.call(d.msg);
+      });
     }
     changesetEditor.tags = function(_) {
       if (!arguments.length)
@@ -61589,7 +62813,10 @@ ${content}</tr>
     }
     function createObjTree(oParentNode, nVerb, bFreeze, bNesteAttr) {
       var nLevelStart = aCache.length, bChildren = oParentNode.hasChildNodes(), bAttributes = oParentNode.hasAttributes(), bHighVerb = Boolean(nVerb & 2);
-      var sProp, vContent, nLength = 0, sCollectedTxt = "", vResult = bHighVerb ? {} : true;
+      var sProp, vContent, nLength = 0, sCollectedTxt = "", vResult = bHighVerb ? {} : (
+        /* put here the default value for empty nodes: */
+        true
+      );
       if (bChildren) {
         for (var oNode, nItem = 0; nItem < oParentNode.childNodes.length; nItem++) {
           oNode = oParentNode.childNodes.item(nItem);
@@ -61684,7 +62911,10 @@ ${content}</tr>
       }
     }
     this.build = function(oXMLParent, nVerbosity, bFreeze, bNesteAttributes) {
-      var _nVerb = arguments.length > 1 && typeof nVerbosity === "number" ? nVerbosity & 3 : 1;
+      var _nVerb = arguments.length > 1 && typeof nVerbosity === "number" ? nVerbosity & 3 : (
+        /* put here the default verbosity level: */
+        1
+      );
       return createObjTree(oXMLParent, _nVerb, bFreeze || false, arguments.length > 3 ? bNesteAttributes : _nVerb === 3);
     };
     this.unbuild = function(oObjTree) {
@@ -63073,7 +64303,8 @@ ${content}</tr>
           targetIndex = null;
         }).on("drag", function(d3_event) {
           var x = d3_event.x - dragOrigin.x, y = d3_event.y - dragOrigin.y;
-          if (!select_default2(this).classed("dragging") && Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2)) <= 5)
+          if (!select_default2(this).classed("dragging") && // don't display drag until dragging beyond a distance threshold
+          Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2)) <= 5)
             return;
           var index = items.nodes().indexOf(this);
           select_default2(this).classed("dragging", true);
@@ -63676,14 +64907,18 @@ ${content}</tr>
         var entityID = entityIDs[i2];
         var entity = context.entity(entityID);
         var tags = Object.assign({}, entity.tags);
-        for (var k in changed) {
-          if (!k)
-            continue;
-          var v = changed[k];
-          if (typeof v === "object") {
-            tags[k] = tags[v.oldKey];
-          } else if (v !== void 0 || tags.hasOwnProperty(k)) {
-            tags[k] = v;
+        if (typeof changed === "function") {
+          tags = changed(tags);
+        } else {
+          for (var k in changed) {
+            if (!k)
+              continue;
+            var v = changed[k];
+            if (typeof v === "object") {
+              tags[k] = tags[v.oldKey];
+            } else if (v !== void 0 || tags.hasOwnProperty(k)) {
+              tags[k] = v;
+            }
           }
         }
         if (!onInput) {
@@ -63847,7 +65082,8 @@ ${content}</tr>
       }
       function keypress(d3_event) {
         var q = search.property("value"), items = list.selectAll(".feature-list-item");
-        if (d3_event.keyCode === 13 && q.length && items.size()) {
+        if (d3_event.keyCode === 13 && // ↩ Return
+        q.length && items.size()) {
           click(d3_event, items.datum());
         }
       }
@@ -63864,7 +65100,7 @@ ${content}</tr>
           drawList();
         }
       }
-      function features2() {
+      function features() {
         var result = [];
         var graph = context.graph();
         var visibleCenter = context.map().extent().center();
@@ -63873,7 +65109,7 @@ ${content}</tr>
           return result;
         var locationMatch = sexagesimal.pair(q.toUpperCase()) || q.match(/^(-?\d+\.?\d*)\s+(-?\d+\.?\d*)$/);
         if (locationMatch) {
-          var loc = [parseFloat(locationMatch[0]), parseFloat(locationMatch[1])];
+          var loc = [Number(locationMatch[0]), Number(locationMatch[1])];
           result.push({
             id: -1,
             geometry: "point",
@@ -63903,14 +65139,14 @@ ${content}</tr>
           if (name.toLowerCase().indexOf(q) < 0)
             continue;
           var matched = _mainPresetIndex.match(entity, graph);
-          var type3 = matched && matched.name() || utilDisplayType(entity.id);
+          var type2 = matched && matched.name() || utilDisplayType(entity.id);
           var extent = entity.extent(graph);
           var distance = extent ? geoSphericalDistance(visibleCenter, extent.center()) : 0;
           localResults.push({
             id: entity.id,
             entity,
             geometry: entity.geometry(graph),
-            type: type3,
+            type: type2,
             name,
             distance
           });
@@ -63933,15 +65169,15 @@ ${content}</tr>
             var tempEntity = osmEntity(attrs);
             var tempGraph = coreGraph([tempEntity]);
             var matched2 = _mainPresetIndex.match(tempEntity, tempGraph);
-            var type4 = matched2 && matched2.name() || utilDisplayType(id3);
+            var type3 = matched2 && matched2.name() || utilDisplayType(id3);
             result.push({
               id: tempEntity.id,
               geometry: tempEntity.geometry(tempGraph),
-              type: type4,
+              type: type3,
               name: d.display_name,
               extent: new geoExtent(
-                [parseFloat(d.boundingbox[3]), parseFloat(d.boundingbox[0])],
-                [parseFloat(d.boundingbox[2]), parseFloat(d.boundingbox[1])]
+                [Number(d.boundingbox[3]), Number(d.boundingbox[0])],
+                [Number(d.boundingbox[2]), Number(d.boundingbox[1])]
               )
             });
           }
@@ -63970,7 +65206,7 @@ ${content}</tr>
       }
       function drawList() {
         var value = search.property("value");
-        var results = features2();
+        var results = features();
         list.classed("filtered", value.length);
         var resultsIndicator = list.selectAll(".no-results-item").data([0]).enter().append("button").property("disabled", true).attr("class", "no-results-item").call(svgIcon("#iD-icon-alert", "pre-text"));
         resultsIndicator.append("span").attr("class", "entity-name");
@@ -64304,7 +65540,8 @@ ${content}</tr>
         }
       }
       function keydown(d3_event) {
-        if (d3_event.keyCode === utilKeybinding.keyCodes["\u2193"] && search.node().selectionStart === search.property("value").length) {
+        if (d3_event.keyCode === utilKeybinding.keyCodes["\u2193"] && // if insertion point is at the end of the string
+        search.node().selectionStart === search.property("value").length) {
           d3_event.preventDefault();
           d3_event.stopPropagation();
           var buttons = list.selectAll(".preset-list-button");
@@ -64314,7 +65551,8 @@ ${content}</tr>
       }
       function keypress(d3_event) {
         var value = search.property("value");
-        if (d3_event.keyCode === 13 && value.length) {
+        if (d3_event.keyCode === 13 && // ↩ Return
+        value.length) {
           list.selectAll(".preset-list-item:first-child").each(function(d) {
             d.choose.call(this);
           });
@@ -65184,7 +66422,8 @@ ${content}</tr>
       }
       noteSave = noteSaveEnter.merge(noteSave).call(userDetails).call(noteSaveButtons);
       function keydown(d3_event) {
-        if (!(d3_event.keyCode === 13 && d3_event.metaKey))
+        if (!(d3_event.keyCode === 13 && // ↩ Return
+        d3_event.metaKey))
           return;
         var osm = services.osm;
         if (!osm)
@@ -65608,6 +66847,7 @@ ${content}</tr>
         } else {
           _oci = {
             resources: [],
+            // no resources?
             defaults: vals[2].defaults
           };
           return _oci;
@@ -66321,11 +67561,11 @@ ${content}</tr>
   // modules/ui/osmose_details.js
   function uiOsmoseDetails(context) {
     let _qaItem;
-    function issueString(d, type3) {
+    function issueString(d, type2) {
       if (!d)
         return "";
       const s = services.osmose.getStrings(d.itemType);
-      return type3 in s ? s[type3] : "";
+      return type2 in s ? s[type2] : "";
     }
     function osmoseDetails(selection2) {
       const details = selection2.selectAll(".error-details").data(
@@ -67655,7 +68895,10 @@ ${content}</tr>
       icon: "iD-icon-" + (_mainLocalizer.textDirection() === "rtl" ? "undo" : "redo")
     }];
     function editable() {
-      return context.mode() && context.mode().id !== "save" && context.map().editableDataEnabled(true);
+      return context.mode() && context.mode().id !== "save" && context.map().editableDataEnabled(
+        true
+        /* ignore min zoom */
+      );
     }
     tool.render = function(selection2) {
       var tooltipBehavior = uiTooltip().placement("bottom").title(function(d) {
@@ -68096,7 +69339,7 @@ ${content}</tr>
         }
       });
     }
-    function drawListItems(layerList, type3, change, filter2) {
+    function drawListItems(layerList, type2, change, filter2) {
       var sources = context.background().sources(context.map().extent(), context.map().zoom(), true).filter(filter2).sort(function(a, b) {
         return a.best() && !b.best() ? -1 : b.best() && !a.best() ? 1 : descending(a.area(), b.area()) || ascending(a.name(), b.name()) || 0;
       });
@@ -68110,7 +69353,7 @@ ${content}</tr>
         return d.best();
       });
       var label = enter.append("label");
-      label.append("input").attr("type", type3).attr("name", "background-layer").attr("value", function(d) {
+      label.append("input").attr("type", type2).attr("name", "background-layer").attr("value", function(d) {
         return d.id;
       }).on("change", change);
       label.append("span").each(function(d) {
@@ -68299,7 +69542,7 @@ ${content}</tr>
       _overlayList.call(updateLayerSelections);
       document.activeElement.blur();
     }
-    function drawListItems(layerList, type3, change, filter2) {
+    function drawListItems(layerList, type2, change, filter2) {
       var sources = context.background().sources(context.map().extent(), context.map().zoom(), true).filter(filter2);
       var layerLinks = layerList.selectAll("li").data(sources, function(d) {
         return d.name();
@@ -68307,7 +69550,7 @@ ${content}</tr>
       layerLinks.exit().remove();
       var enter = layerLinks.enter().append("li");
       var label = enter.append("label");
-      label.append("input").attr("type", type3).attr("name", "layers").on("change", change);
+      label.append("input").attr("type", type2).attr("name", "layers").on("change", change);
       label.append("span").each(function(d) {
         d.label()(select_default2(this));
       });
@@ -68790,7 +70033,9 @@ ${content}</tr>
     function getOptions() {
       return {
         what: corePreferences("validate-what") || "edited",
+        // 'all', 'edited'
         where: corePreferences("validate-where") || "all"
+        // 'all', 'visible'
       };
     }
     function updateOptionValue(d3_event, d, val) {
@@ -68830,7 +70075,7 @@ ${content}</tr>
       container = container.merge(containerEnter);
       container.selectAll(".issue-rules-list").call(drawListItems, _ruleKeys, "checkbox", "rule", toggleRule, isRuleEnabled);
     }
-    function drawListItems(selection2, data, type3, name, change, active) {
+    function drawListItems(selection2, data, type2, name, change, active) {
       var items = selection2.selectAll("li").data(data);
       items.exit().remove();
       var enter = items.enter().append("li");
@@ -68842,7 +70087,7 @@ ${content}</tr>
         );
       }
       var label = enter.append("label");
-      label.append("input").attr("type", type3).attr("name", name).on("change", change);
+      label.append("input").attr("type", type2).attr("name", name).on("change", change);
       label.append("span").html(function(d) {
         var params = {};
         if (d === "unsquare_way") {
@@ -68872,7 +70117,7 @@ ${content}</tr>
     function changeSquare() {
       var input = select_default2(this);
       var degStr = utilGetSetValue(input).trim();
-      var degNum = parseFloat(degStr, 10);
+      var degNum = Number(degStr);
       if (!isFinite(degNum)) {
         degNum = DEFAULTSQUARE;
       } else if (degNum > MAXSQUARE) {
@@ -68937,12 +70182,12 @@ ${content}</tr>
     function setNoIssuesText(selection2) {
       var opts = getOptions();
       function checkForHiddenIssues(cases) {
-        for (var type3 in cases) {
-          var hiddenOpts = cases[type3];
+        for (var type2 in cases) {
+          var hiddenOpts = cases[type2];
           var hiddenIssues = context.validator().getIssues(hiddenOpts);
           if (hiddenIssues.length) {
             selection2.select(".box .details").html("").call(_t.append(
-              "issues.no_issues.hidden_issues." + type3,
+              "issues.no_issues.hidden_issues." + type2,
               { count: hiddenIssues.length.toString() }
             ));
             return;
@@ -69322,7 +70567,7 @@ ${content}</tr>
       container = container.merge(containerEnter);
       container.selectAll(".layer-feature-list").call(drawListItems, _features, "checkbox", "feature", clickFeature, showsFeature);
     }
-    function drawListItems(selection2, data, type3, name, change, active) {
+    function drawListItems(selection2, data, type2, name, change, active) {
       var items = selection2.selectAll("li").data(data);
       items.exit().remove();
       var enter = items.enter().append("li").call(
@@ -69339,7 +70584,7 @@ ${content}</tr>
         }).placement("top")
       );
       var label = enter.append("label");
-      label.append("input").attr("type", type3).attr("name", name).on("change", change);
+      label.append("input").attr("type", type2).attr("name", name).on("change", change);
       label.append("span").html(function(d) {
         return _t.html(name + "." + d + ".description");
       });
@@ -69374,7 +70619,7 @@ ${content}</tr>
         return context.surface().classed("highlight-edited");
       });
     }
-    function drawListItems(selection2, data, type3, name, change, active) {
+    function drawListItems(selection2, data, type2, name, change, active) {
       var items = selection2.selectAll("li").data(data);
       items.exit().remove();
       var enter = items.enter().append("li").call(
@@ -69388,7 +70633,7 @@ ${content}</tr>
         }).placement("top")
       );
       var label = enter.append("label");
-      label.append("input").attr("type", type3).attr("name", name).on("change", change);
+      label.append("input").attr("type", type2).attr("name", name).on("change", change);
       label.append("span").html(function(d) {
         return _t.html(name + "." + d + ".description");
       });
@@ -69604,14 +70849,19 @@ ${content}</tr>
         if (!d3_event.composedPath)
           return;
         var isOkayTarget = d3_event.composedPath().some(function(node) {
-          return node.nodeType === 1 && (node.nodeName === "INPUT" || node.nodeName === "LABEL" || node.nodeName === "A");
+          return node.nodeType === 1 && // clicking <input> focuses it and/or changes a value
+          (node.nodeName === "INPUT" || // clicking <label> affects its <input> by default
+          node.nodeName === "LABEL" || // clicking <a> opens a hyperlink by default
+          node.nodeName === "A");
         });
         if (isOkayTarget)
           return;
         d3_event.preventDefault();
       });
       var detected = utilDetect();
-      if ("GestureEvent" in window && !detected.isMobileWebKit) {
+      if ("GestureEvent" in window && // Listening for gesture events on iOS 13.4+ breaks double-tapping,
+      // but we only need to do this on desktop Safari anyway. – #7694
+      !detected.isMobileWebKit) {
         container.on("gesturestart.ui gesturechange.ui gestureend.ui", function(d3_event) {
           d3_event.preventDefault();
         });
@@ -69788,6 +71038,7 @@ ${content}</tr>
       if (_loadPromise)
         return _loadPromise;
       return _loadPromise = Promise.all([
+        // must have strings and presets before loading the UI
         _mainLocalizer.ensureLoaded(),
         _mainPresetIndex.ensureLoaded()
       ]).then(() => {
@@ -69907,7 +71158,7 @@ ${content}</tr>
     const dispatch10 = dispatch_default("enter", "exit", "change");
     let context = utilRebind({}, dispatch10, "on");
     let _deferred2 = /* @__PURE__ */ new Set();
-    context.version = "2.23.2";
+    context.version = package_default.version;
     context.privacyVersion = "20201202";
     context.initialHashParams = window.location.hash ? utilStringQs(window.location.hash) : {};
     context.changeset = null;
@@ -70063,20 +71314,9 @@ ${content}</tr>
     context.maxCharsForTagKey = () => 255;
     context.maxCharsForTagValue = () => 255;
     context.maxCharsForRelationRole = () => 255;
-    function cleanOsmString(val, maxChars) {
-      if (val === void 0 || val === null) {
-        val = "";
-      } else {
-        val = val.toString();
-      }
-      val = val.trim();
-      if (val.normalize)
-        val = val.normalize("NFC");
-      return utilUnicodeCharsTruncated(val, maxChars);
-    }
-    context.cleanTagKey = (val) => cleanOsmString(val, context.maxCharsForTagKey());
-    context.cleanTagValue = (val) => cleanOsmString(val, context.maxCharsForTagValue());
-    context.cleanRelationRole = (val) => cleanOsmString(val, context.maxCharsForRelationRole());
+    context.cleanTagKey = (val) => utilCleanOsmString(val, context.maxCharsForTagKey());
+    context.cleanTagValue = (val) => utilCleanOsmString(val, context.maxCharsForTagValue());
+    context.cleanRelationRole = (val) => utilCleanOsmString(val, context.maxCharsForRelationRole());
     let _inIntro = false;
     context.inIntro = function(val) {
       if (!arguments.length)
@@ -70188,10 +71428,15 @@ ${content}</tr>
     };
     let _debugFlags = {
       tile: false,
+      // tile boundaries
       collision: false,
+      // label collision bounding boxes
       imagery: false,
+      // imagery bounding polygons
       target: false,
+      // touch targets
       downloaded: false
+      // downloaded data from osm
     };
     context.debugFlags = () => _debugFlags;
     context.getDebug = (flag) => flag && _debugFlags[flag];
@@ -70381,12 +71626,19 @@ ${content}</tr>
     ]).then((vals) => {
       _nsi = {
         data: vals[0].nsi,
+        // the raw name-suggestion-index data
         dissolved: vals[1].dissolved,
+        // list of dissolved items
         replacements: vals[2].replacements,
+        // trivial old->new qid replacements
         trees: vals[3].trees,
+        // metadata about trees, main tags
         kvt: /* @__PURE__ */ new Map(),
+        // Map (k -> Map (v -> t) )
         qids: /* @__PURE__ */ new Map(),
+        // Map (wd/wp tag values -> qids)
         ids: /* @__PURE__ */ new Map()
+        // Map (id -> NSI item)
       };
       const matcher = _nsi.matcher = new Matcher();
       matcher.buildMatchIndex(_nsi.data);
@@ -70513,6 +71765,7 @@ ${content}</tr>
       patterns2 = {
         primary: /^(flag:name|flag:name:\w+)$/i,
         alternate: /^(flag|flag:\w+|subject|subject:\w+)$/i
+        // note: no `country`, we special-case it below
       };
     } else if (t === "brands") {
       testNameFragments = true;
@@ -70655,7 +71908,11 @@ ${content}</tr>
         const mainTag = item.mainTag;
         const itemQID = item.tags[mainTag];
         const notQID = newTags[`not:${mainTag}`];
-        if (!itemQID || itemQID === notQID || newTags.office && !item.tags.office) {
+        if (
+          // Exceptions, skip this hit
+          !itemQID || itemQID === notQID || // No `*:wikidata` or matched a `not:*:wikidata`
+          newTags.office && !item.tags.office
+        ) {
           item = null;
           continue;
         } else {
@@ -70752,15 +72009,55 @@ ${content}</tr>
     return false;
   }
   var nsi_default = {
+    // `init()`
+    // On init, start preparing the name-suggestion-index
+    //
     init: () => {
       setNsiSources();
       _mainPresetIndex.ensureLoaded().then(() => loadNsiPresets()).then(() => loadNsiData()).then(() => _nsiStatus = "ok").catch(() => _nsiStatus = "failed");
     },
+    // `reset()`
+    // Reset is called when user saves data to OSM (does nothing here)
+    //
     reset: () => {
     },
+    // `status()`
+    // To let other code know how it's going...
+    //
+    // Returns
+    //   `String`: 'loading', 'ok', 'failed'
+    //
     status: () => _nsiStatus,
+    // `isGenericName()`
+    // Is the `name` tag generic?
+    //
+    // Arguments
+    //   `tags`: `Object` containing the feature's OSM tags
+    // Returns
+    //   `true` if it is generic, `false` if not
+    //
     isGenericName: (tags) => _isGenericName(tags),
+    // `upgradeTags()`
+    // Suggest tag upgrades.
+    // This function will not modify the input tags, it makes a copy.
+    //
+    // Arguments
+    //   `tags`: `Object` containing the feature's OSM tags
+    //   `loc`: Location where this feature exists, as a [lon, lat]
+    // Returns
+    //   `Object` containing the result, or `null` if no changes needed:
+    //   {
+    //     'newTags': `Object` - The tags the the feature should have
+    //     'matched': `Object` - The matched item
+    //   }
+    //
     upgradeTags: (tags, loc) => _upgradeTags(tags, loc),
+    // `cache()`
+    // Direct access to the NSI cache, useful for testing or breaking things
+    //
+    // Returns
+    //   `Object`: the internal NSI cache
+    //
     cache: () => _nsi
   };
 
@@ -70817,6 +72114,7 @@ ${content}</tr>
     var params = utilQsString({
       ipp: maxResults,
       page: nextPage,
+      // client_id: clientId,
       bbTopLeft: [bbox2.maxY, bbox2.minX].join(","),
       bbBottomRight: [bbox2.minY, bbox2.maxX].join(",")
     }, true);
@@ -70839,7 +72137,7 @@ ${content}</tr>
       if (!data || !data.currentPageItems || !data.currentPageItems.length) {
         throw new Error("No Data");
       }
-      var features2 = data.currentPageItems.map(function(item) {
+      var features = data.currentPageItems.map(function(item) {
         var loc = [+item.lng, +item.lat];
         var d;
         if (which === "images") {
@@ -70869,7 +72167,7 @@ ${content}</tr>
           data: d
         };
       });
-      cache.rtree.load(features2);
+      cache.rtree.load(features);
       if (data.currentPageItems.length === maxResults) {
         cache.nextPage[tile.id] = nextPage + 1;
         loadNextTilePage(which, currZoom, url, tile);
@@ -71083,6 +72381,9 @@ ${content}</tr>
     getSequenceKeyForImage: function(d) {
       return d && d.sequence_id;
     },
+    // Updates the currently highlighted sequence and selected bubble.
+    // Reset is only necessary when interacting with the viewport because
+    // this implicitly changes the currently selected bubble/sequence
     setStyles: function(context, hovered, reset) {
       if (reset) {
         context.container().selectAll(".viewfield-group").classed("highlighted", false).classed("hovered", false).classed("currentView", false);
@@ -71425,7 +72726,7 @@ ${content}</tr>
   function getLoc(attrs) {
     var lon = attrs.lon && attrs.lon.value;
     var lat = attrs.lat && attrs.lat.value;
-    return [parseFloat(lon), parseFloat(lat)];
+    return [Number(lon), Number(lat)];
   }
   function getNodes(obj) {
     var elems = obj.getElementsByTagName("nd");
@@ -71527,7 +72828,7 @@ ${content}</tr>
         timestamp: obj.timestamp,
         user: obj.user,
         uid: obj.uid && obj.uid.toString(),
-        loc: [parseFloat(obj.lon), parseFloat(obj.lat)],
+        loc: [Number(obj.lon), Number(obj.lat)],
         tags: obj.tags
       });
     },
@@ -71862,6 +73163,8 @@ ${content}</tr>
     noteReportURL: function(note) {
       return urlroot + "/reports/new?reportable_type=Note&reportable_id=" + note.id;
     },
+    // Generic method to load data from the OSM API
+    // Can handle either auth or unauth calls.
     loadFromAPI: function(path, callback, options2) {
       options2 = Object.assign({ skipSeen: true }, options2);
       var that = this;
@@ -71923,12 +73226,16 @@ ${content}</tr>
         return controller;
       }
     },
+    // Load a single entity by id (ways and relations use the `/full` call to include
+    // nodes and members). Parent relations are not included, see `loadEntityRelations`.
+    // GET /api/0.6/node/#id
+    // GET /api/0.6/[way|relation]/#id/full
     loadEntity: function(id2, callback) {
-      var type3 = osmEntity.id.type(id2);
+      var type2 = osmEntity.id.type(id2);
       var osmID = osmEntity.id.toOSM(id2);
       var options2 = { skipSeen: false };
       this.loadFromAPI(
-        "/api/0.6/" + type3 + "/" + osmID + (type3 !== "node" ? "/full" : "") + ".json",
+        "/api/0.6/" + type2 + "/" + osmID + (type2 !== "node" ? "/full" : "") + ".json",
         function(err, entities) {
           if (callback)
             callback(err, { data: entities });
@@ -71936,12 +73243,14 @@ ${content}</tr>
         options2
       );
     },
+    // Load a single entity with a specific version
+    // GET /api/0.6/[node|way|relation]/#id/#version
     loadEntityVersion: function(id2, version, callback) {
-      var type3 = osmEntity.id.type(id2);
+      var type2 = osmEntity.id.type(id2);
       var osmID = osmEntity.id.toOSM(id2);
       var options2 = { skipSeen: false };
       this.loadFromAPI(
-        "/api/0.6/" + type3 + "/" + osmID + "/" + version + ".json",
+        "/api/0.6/" + type2 + "/" + osmID + "/" + version + ".json",
         function(err, entities) {
           if (callback)
             callback(err, { data: entities });
@@ -71949,12 +73258,14 @@ ${content}</tr>
         options2
       );
     },
+    // Load the relations of a single entity with the given.
+    // GET /api/0.6/[node|way|relation]/#id/relations
     loadEntityRelations: function(id2, callback) {
-      var type3 = osmEntity.id.type(id2);
+      var type2 = osmEntity.id.type(id2);
       var osmID = osmEntity.id.toOSM(id2);
       var options2 = { skipSeen: false };
       this.loadFromAPI(
-        "/api/0.6/" + type3 + "/" + osmID + "/relations.json",
+        "/api/0.6/" + type2 + "/" + osmID + "/relations.json",
         function(err, entities) {
           if (callback)
             callback(err, { data: entities });
@@ -71962,18 +73273,22 @@ ${content}</tr>
         options2
       );
     },
+    // Load multiple entities in chunks
+    // (note: callback may be called multiple times)
+    // Unlike `loadEntity`, child nodes and members are not fetched
+    // GET /api/0.6/[nodes|ways|relations]?#parameters
     loadMultiple: function(ids, callback) {
       var that = this;
       var groups = utilArrayGroupBy(utilArrayUniq(ids), osmEntity.id.type);
       Object.keys(groups).forEach(function(k) {
-        var type3 = k + "s";
+        var type2 = k + "s";
         var osmIDs = groups[k].map(function(id2) {
           return osmEntity.id.toOSM(id2);
         });
         var options2 = { skipSeen: false };
         utilArrayChunk(osmIDs, 150).forEach(function(arr) {
           that.loadFromAPI(
-            "/api/0.6/" + type3 + ".json?" + type3 + "=" + arr.join(),
+            "/api/0.6/" + type2 + ".json?" + type2 + "=" + arr.join(),
             function(err, entities) {
               if (callback)
                 callback(err, { data: entities });
@@ -71983,6 +73298,10 @@ ${content}</tr>
         });
       });
     },
+    // Create, upload, and close a changeset
+    // PUT /api/0.6/changeset/create
+    // POST /api/0.6/changeset/#id/upload
+    // PUT /api/0.6/changeset/#id/close
     putChangeset: function(changeset, changes, callback) {
       var cid = _connectionID;
       if (_changeset.inflight) {
@@ -72038,6 +73357,9 @@ ${content}</tr>
         }
       }
     },
+    // Load multiple users in chunks
+    // (note: callback may be called multiple times)
+    // GET /api/0.6/users?users=#id1,#id2,...,#idn
     loadUsers: function(uids, callback) {
       var toLoad = [];
       var cached = [];
@@ -72071,6 +73393,8 @@ ${content}</tr>
         }, options2);
       }
     },
+    // Load a given user by id
+    // GET /api/0.6/user/#id
     loadUser: function(uid, callback) {
       if (_userCache.user[uid] || !this.authenticated()) {
         delete _userCache.toLoad[uid];
@@ -72091,6 +73415,8 @@ ${content}</tr>
         }, options2);
       }
     },
+    // Load the details of the logged-in user
+    // GET /api/0.6/user/details
     userDetails: function(callback) {
       if (_userDetails) {
         return callback(void 0, _userDetails);
@@ -72111,6 +73437,8 @@ ${content}</tr>
         }, options2);
       }
     },
+    // Load previous changesets for the logged in user
+    // GET /api/0.6/changesets?user=#id
     userChangesets: function(callback) {
       if (_userChangesets) {
         return callback(void 0, _userChangesets);
@@ -72143,6 +73471,8 @@ ${content}</tr>
         return callback(void 0, _userChangesets);
       }
     },
+    // Fetch the status of the OSM API
+    // GET /api/capabilities
     status: function(callback) {
       var url = urlroot + "/api/capabilities";
       var errback = wrapcb(this, done, _connectionID);
@@ -72183,6 +73513,8 @@ ${content}</tr>
         }
       }
     },
+    // Calls `status` and dispatches an `apiStatusChange` event if the returned
+    // status differs from the cached status.
     reloadApiStatus: function() {
       if (!this.throttledReloadApiStatus) {
         var that = this;
@@ -72197,9 +73529,12 @@ ${content}</tr>
       }
       this.throttledReloadApiStatus();
     },
+    // Returns the maximum number of nodes a single way can have
     maxWayNodes: function() {
       return _maxWayNodes;
     },
+    // Load data (entities) from the API in tiles
+    // GET /api/0.6/map?bbox=
     loadTiles: function(projection2, callback) {
       if (_off)
         return;
@@ -72213,6 +73548,8 @@ ${content}</tr>
         this.loadTile(tile, callback);
       }, this);
     },
+    // Load a single data tile
+    // GET /api/0.6/map?bbox=
     loadTile: function(tile, callback) {
       if (_off)
         return;
@@ -72249,6 +73586,7 @@ ${content}</tr>
       var bbox2 = { minX: loc[0], minY: loc[1], maxX: loc[0], maxY: loc[1] };
       return _tileCache.rtree.collides(bbox2);
     },
+    // load the tile that covers the given `loc`
     loadTileAtLoc: function(loc, callback) {
       if (Object.keys(_tileCache.toLoad).length > 50)
         return;
@@ -72263,6 +73601,8 @@ ${content}</tr>
         this.loadTile(tile, callback);
       }, this);
     },
+    // Load notes from the API in tiles
+    // GET /api/0.6/notes?bbox=
     loadNotes: function(projection2, noteOptions) {
       noteOptions = Object.assign({ limit: 1e4, closed: 7 }, noteOptions);
       if (_off)
@@ -72296,6 +73636,8 @@ ${content}</tr>
         );
       });
     },
+    // Create a note
+    // POST /api/0.6/notes?params
     postNoteCreate: function(note, callback) {
       if (!this.authenticated()) {
         return callback({ message: "Not Authenticated", status: -3 }, note);
@@ -72330,6 +73672,10 @@ ${content}</tr>
         }, options2);
       }
     },
+    // Update a note
+    // POST /api/0.6/notes/#id/comment?text=comment
+    // POST /api/0.6/notes/#id/close?text=comment
+    // POST /api/0.6/notes/#id/reopen?text=comment
     postNoteUpdate: function(note, newStatus, callback) {
       if (!this.authenticated()) {
         return callback({ message: "Not Authenticated", status: -3 }, note);
@@ -72376,6 +73722,7 @@ ${content}</tr>
         }, options2);
       }
     },
+    /* connection options for source switcher (optional) */
     apiConnections: function(val) {
       if (!arguments.length)
         return _apiConnections;
@@ -72399,6 +73746,9 @@ ${content}</tr>
     isChangesetInflight: function() {
       return !!_changeset.inflight;
     },
+    // get/set cached data
+    // This is used to save/restore the state when entering/exiting the walkthrough
+    // Also used for testing purposes.
     caches: function(obj) {
       function cloneCache(source) {
         var target = {};
@@ -72488,6 +73838,7 @@ ${content}</tr>
       _tileZoom4 = val;
       return this;
     },
+    // get all cached notes covering the viewport
     notes: function(projection2) {
       var viewport = projection2.clipExtent();
       var min3 = [viewport[0][0], viewport[1][1]];
@@ -72497,15 +73848,18 @@ ${content}</tr>
         return d.data;
       });
     },
+    // get a single note from the cache
     getNote: function(id2) {
       return _noteCache.note[id2];
     },
+    // remove a single note from the cache
     removeNote: function(note) {
       if (!(note instanceof osmNote) || !note.id)
         return;
       delete _noteCache.note[note.id];
       updateRtree4(encodeNoteRtree(note), false);
     },
+    // replace a single note in the cache
     replaceNote: function(note) {
       if (!(note instanceof osmNote) || !note.id)
         return;
@@ -72513,6 +73867,8 @@ ${content}</tr>
       updateRtree4(encodeNoteRtree(note), true);
       return note;
     },
+    // Get an array of note IDs closed during this session.
+    // Used to populate `closed:note` changeset tag
     getClosedIDs: function() {
       return Object.keys(_noteCache.closed).sort();
     }
@@ -72553,6 +73909,12 @@ ${content}</tr>
       });
       _inflight2 = {};
     },
+    /**
+     * Get the best value for the property, or undefined if not found
+     * @param entity object from wikibase
+     * @param property string e.g. 'P4' for image
+     * @param langCode string e.g. 'fr' for French
+     */
     claimToValue: function(entity, property, langCode) {
       if (!entity.claims[property])
         return void 0;
@@ -72574,6 +73936,11 @@ ${content}</tr>
         return void 0;
       }
     },
+    /**
+     * Convert monolingual property into a key-value object (language -> value)
+     * @param entity object from wikibase
+     * @param property string e.g. 'P31' for monolingual wiki page title
+     */
     monolingualClaimToValueObj: function(entity, property) {
       if (!entity || !entity.claims[property])
         return void 0;
@@ -72587,6 +73954,14 @@ ${content}</tr>
       var result = value ? "Tag:" + key + "=" + value : "Key:" + key;
       return result.replace(/_/g, " ").trim();
     },
+    //
+    // Pass params object of the form:
+    // {
+    //   key: 'string',
+    //   value: 'string',
+    //   langCode: 'string'
+    // }
+    //
     getEntity: function(params, callback) {
       var doRequest = params.debounce ? debouncedRequest : request;
       var that = this;
@@ -72636,6 +74011,9 @@ ${content}</tr>
         languagefallback: 1,
         origin: "*",
         format: "json"
+        // There is an MW Wikibase API bug https://phabricator.wikimedia.org/T212069
+        // We shouldn't use v1 until it gets fixed, but should switch to it afterwards
+        // formatversion: 2,
       };
       var url = apibase3 + "?" + utilQsString(obj);
       doRequest(url, function(err, d) {
@@ -72673,6 +74051,22 @@ ${content}</tr>
         }
       });
     },
+    //
+    // Pass params object of the form:
+    // {
+    //   key: 'string',     // required
+    //   value: 'string'    // optional
+    // }
+    //
+    // Get an result object used to display tag documentation
+    // {
+    //   title:        'string',
+    //   description:  'string',
+    //   editURL:      'string',
+    //   imageURL:     'string',
+    //   wiki:         { title: 'string', text: 'string', url: 'string' }
+    // }
+    //
     getDocs: function(params, callback) {
       var that = this;
       var langCodes = _mainLocalizer.localeCodes().map(function(code) {
@@ -72884,7 +74278,7 @@ ${content}</tr>
       if (!bubbles)
         return;
       bubbles.shift();
-      const features2 = bubbles.map((bubble) => {
+      const features = bubbles.map((bubble) => {
         if (cache.points[bubble.id])
           return null;
         const loc = [bubble.lo, bubble.la];
@@ -72894,8 +74288,14 @@ ${content}</tr>
           ca: bubble.he,
           captured_at: bubble.cd,
           captured_by: "microsoft",
+          // nbn: bubble.nbn,
+          // pbn: bubble.pbn,
+          // ad: bubble.ad,
+          // rn: bubble.rn,
           pr: bubble.pr,
+          // previous
           ne: bubble.ne,
+          // next
           pano: true,
           sequenceKey: null
         };
@@ -72911,7 +74311,7 @@ ${content}</tr>
           data: d
         };
       }).filter(Boolean);
-      cache.rtree.load(features2);
+      cache.rtree.load(features);
       connectSequences();
       if (which === "bubbles") {
         dispatch8.call("loadedImages");
@@ -73394,12 +74794,18 @@ ${content}</tr>
     return quadKeys;
   }
   var streetside_default = {
+    /**
+     * init() initialize streetside.
+     */
     init: function() {
       if (!_ssCache) {
         this.reset();
       }
       this.event = utilRebind(this, dispatch8, "on");
     },
+    /**
+     * reset() reset the cache.
+     */
     reset: function() {
       if (_ssCache) {
         Object.values(_ssCache.bubbles.inflight).forEach(abortRequest6);
@@ -73409,6 +74815,9 @@ ${content}</tr>
         sequences: {}
       };
     },
+    /**
+     * bubbles()
+     */
     bubbles: function(projection2) {
       const limit = 5;
       return searchLimited3(limit, projection2, _ssCache.bubbles.rtree);
@@ -73432,6 +74841,9 @@ ${content}</tr>
       });
       return results;
     },
+    /**
+     * loadBubbles()
+     */
     loadBubbles: function(projection2, margin) {
       if (margin === void 0)
         margin = 2;
@@ -73565,6 +74977,9 @@ ${content}</tr>
       _sceneOptions.yaw = yaw;
       return this;
     },
+    /**
+     * showViewer()
+     */
     showViewer: function(context) {
       let wrap2 = context.container().select(".photoviewer").classed("hide", false);
       let isHidden = wrap2.selectAll(".photo-wrapper.ms-wrapper.hide").size();
@@ -73574,6 +74989,9 @@ ${content}</tr>
       }
       return this;
     },
+    /**
+     * hideViewer()
+     */
     hideViewer: function(context) {
       let viewer = context.container().select(".photoviewer");
       if (!viewer.empty())
@@ -73583,6 +75001,9 @@ ${content}</tr>
       this.updateUrlImage(null);
       return this.setStyles(context, null, true);
     },
+    /**
+     * selectImage().
+     */
     selectImage: function(context, key) {
       let that = this;
       let d = this.cachedImage(key);
@@ -73664,6 +75085,9 @@ ${content}</tr>
     getSequenceKeyForBubble: function(d) {
       return d && d.sequenceKey;
     },
+    // Updates the currently highlighted sequence and selected bubble.
+    // Reset is only necessary when interacting with the viewport because
+    // this implicitly changes the currently selected bubble/sequence
     setStyles: function(context, hovered, reset) {
       if (reset) {
         context.container().selectAll(".viewfield-group").classed("highlighted", false).classed("hovered", false).classed("currentView", false);
@@ -73704,6 +75128,9 @@ ${content}</tr>
         window.location.replace("#" + utilQsString(hash, true));
       }
     },
+    /**
+     * cache().
+     */
     cache: function() {
       return _ssCache;
     }
@@ -73758,10 +75185,10 @@ ${content}</tr>
   function clean(params) {
     return utilObjectOmit(params, ["geometry", "debounce"]);
   }
-  function filterKeys(type3) {
-    var count_type = type3 ? "count_" + type3 : "count_all";
+  function filterKeys(type2) {
+    var count_type = type2 ? "count_" + type2 : "count_all";
     return function(d) {
-      return parseFloat(d[count_type]) > 2500 || d.in_wiki;
+      return Number(d[count_type]) > 2500 || d.in_wiki;
     };
   }
   function filterMultikeys(prefix) {
@@ -73786,7 +75213,7 @@ ${content}</tr>
         return false;
       if (d.role.match(/[A-Z*;,]/) !== null)
         return false;
-      return parseFloat(d[tag_members_fractions[geometry]]) > 0;
+      return Number(d[tag_members_fractions[geometry]]) > 0;
     };
   }
   function valKey(d) {
@@ -73853,6 +75280,7 @@ ${content}</tr>
       _inflight3 = {};
       _taginfoCache = {};
       _popularKeys = {
+        // manually exclude some keys – #5377, #7485
         postal_code: true,
         full_name: true,
         loc_name: true,
@@ -74031,7 +75459,7 @@ ${content}</tr>
     if (!Array.isArray(layers)) {
       layers = [layers];
     }
-    var features2 = [];
+    var features = [];
     layers.forEach(function(layerID) {
       var layer = vectorTile.layers[layerID];
       if (layer) {
@@ -74058,7 +75486,7 @@ ${content}</tr>
           feature3.__layerID__ = layerID.replace(/[^_a-zA-Z0-9\-]/g, "_");
           feature3.__featurehash__ = featurehash;
           feature3.__propertyhash__ = propertyhash;
-          features2.push(feature3);
+          features.push(feature3);
           if (isClipped && geometry.type === "MultiPolygon") {
             var merged = mergeCache[propertyhash];
             if (merged && merged.length) {
@@ -74082,7 +75510,7 @@ ${content}</tr>
         }
       }
     });
-    return features2;
+    return features;
   }
   function loadTile2(source, tile) {
     if (source.loaded[tile.id] || source.inflight[tile.id])
@@ -74143,11 +75571,11 @@ ${content}</tr>
       var seen = {};
       var results = [];
       for (var i2 = 0; i2 < tiles.length; i2++) {
-        var features2 = source.loaded[tiles[i2].id];
-        if (!features2 || !features2.length)
+        var features = source.loaded[tiles[i2].id];
+        if (!features || !features.length)
           continue;
-        for (var j2 = 0; j2 < features2.length; j2++) {
-          var feature3 = features2[j2];
+        for (var j2 = 0; j2 < features.length; j2++) {
+          var feature3 = features[j2];
           var hash = feature3.__featurehash__;
           if (seen[hash])
             continue;
@@ -74190,6 +75618,7 @@ ${content}</tr>
     reset: function() {
       _wikidataCache = {};
     },
+    // Search for Wikidata items matching the query
     itemsForSearchQuery: function(query, callback) {
       if (!query) {
         if (callback)
@@ -74203,7 +75632,9 @@ ${content}</tr>
         formatversion: 2,
         search: query,
         type: "item",
+        // the language to search
         language: lang,
+        // the language for the label and description in the result
         uselang: lang,
         limit: 10,
         origin: "*"
@@ -74219,6 +75650,8 @@ ${content}</tr>
           callback(err.message, {});
       });
     },
+    // Given a Wikipedia language and article title,
+    // return an array of corresponding Wikidata entities.
     itemsByTitle: function(lang, title, callback) {
       if (!title) {
         if (callback)
@@ -74233,6 +75666,7 @@ ${content}</tr>
         sites: lang.replace(/-/g, "_") + "wiki",
         titles: title,
         languages: "en",
+        // shrink response by filtering to one language
         origin: "*"
       });
       json_default(url).then(function(result) {
@@ -74288,6 +75722,20 @@ ${content}</tr>
           callback(err.message, {});
       });
     },
+    // Pass `params` object of the form:
+    // {
+    //   qid: 'string'      // brand wikidata  (e.g. 'Q37158')
+    // }
+    //
+    // Get an result object used to display tag documentation
+    // {
+    //   title:        'string',
+    //   description:  'string',
+    //   editURL:      'string',
+    //   imageURL:     'string',
+    //   wiki:         { title: 'string', text: 'string', url: 'string' }
+    // }
+    //
     getDocs: function(params, callback) {
       var langs = this.languagesToQuery();
       this.entityByQID(params.qid, function(err, entity) {
@@ -74630,7 +76078,8 @@ ${content}</tr>
         if (activeNode && (/* @__PURE__ */ new Set(["INPUT", "TEXTAREA"])).has(activeNode.nodeName))
           return;
       }
-      if (d3_event.keyCode === 93 || d3_event.keyCode === 32) {
+      if (d3_event.keyCode === 93 || // context menu key
+      d3_event.keyCode === 32) {
         d3_event.preventDefault();
       }
       if (d3_event.repeat)
@@ -74767,7 +76216,10 @@ ${content}</tr>
           _downPointers[selectPointerInfo.pointerId].done = true;
         }
       }
-      var isMultiselect = context.mode().id === "select" && (lastEvent && lastEvent.shiftKey || context.surface().select(".lasso").node() || _multiselectionPointerId && !multiselectEntityId);
+      var isMultiselect = context.mode().id === "select" && // and shift key is down
+      (lastEvent && lastEvent.shiftKey || // or we're lasso-selecting
+      context.surface().select(".lasso").node() || // or a pointer is down over a selected feature
+      _multiselectionPointerId && !multiselectEntityId);
       processClick(targetDatum, isMultiselect, p2, multiselectEntityId);
       function mapContains(event) {
         var rect = mapNode.getBoundingClientRect();
@@ -75240,17 +76692,17 @@ ${content}</tr>
       _affectedFeatureCount = 0;
       for (var i2 in entityIds) {
         var entityID = entityIds[i2];
-        var type3 = downgradeTypeForEntityID(entityID);
-        if (type3) {
+        var type2 = downgradeTypeForEntityID(entityID);
+        if (type2) {
           _affectedFeatureCount += 1;
-          if (downgradeType && type3 !== downgradeType) {
-            if (downgradeType !== "generic" && type3 !== "generic") {
+          if (downgradeType && type2 !== downgradeType) {
+            if (downgradeType !== "generic" && type2 !== "generic") {
               downgradeType = "building_address";
             } else {
               downgradeType = "generic";
             }
           } else {
-            downgradeType = type3;
+            downgradeType = type2;
           }
         }
       }
@@ -75282,18 +76734,18 @@ ${content}</tr>
       context.perform(function(graph) {
         for (var i2 in selectedIDs) {
           var entityID = selectedIDs[i2];
-          var type3 = downgradeTypeForEntityID(entityID);
-          if (!type3)
+          var type2 = downgradeTypeForEntityID(entityID);
+          if (!type2)
             continue;
           var tags = Object.assign({}, graph.entity(entityID).tags);
           for (var key in tags) {
-            if (type3 === "address" && addressKeysToKeep.indexOf(key) !== -1)
+            if (type2 === "address" && addressKeysToKeep.indexOf(key) !== -1)
               continue;
-            if (type3 === "building") {
+            if (type2 === "building") {
               if (buildingKeysToKeep.indexOf(key) !== -1 || key.match(/^building:.{1,}/) || key.match(/^roof:.{1,}/))
                 continue;
             }
-            if (type3 !== "generic") {
+            if (type2 !== "generic") {
               if (key.match(/^addr:.{1,}/) || key.match(/^source:.{1,}/))
                 continue;
             }
@@ -75931,6 +77383,7 @@ ${content}</tr>
       }).filter(function(o) {
         return o.id !== "delete" && o.id !== "downgrade" && o.id !== "copy";
       }).concat([
+        // group copy/downgrade/delete operation together at the end of the list
         operationCopy(context, selectedIDs),
         operationDowngrade(context, selectedIDs),
         operationDelete(context, selectedIDs)
@@ -76102,7 +77555,12 @@ ${content}</tr>
           surface.selectAll(utilEntitySelector([_focusedParentWayId])).classed("related", true);
         }
         if (context.map().withinEditableZoom()) {
-          surface.selectAll(utilDeepMemberSelector(selectedIDs, context.graph(), true)).classed("selected-member", true);
+          surface.selectAll(utilDeepMemberSelector(
+            selectedIDs,
+            context.graph(),
+            true
+            /* skipMultipolgonMembers */
+          )).classed("selected-member", true);
           surface.selectAll(utilEntityOrDeepMemberSelector(selectedIDs, context.graph())).classed("selected", true);
         }
       }
@@ -76250,8 +77708,15 @@ ${content}</tr>
       context.ui().sidebar.hide();
       context.features().forceVisible([]);
       var entity = singular();
-      if (_newFeature && entity && entity.type === "relation" && Object.keys(entity.tags).length === 0 && context.graph().parentRelations(entity).length === 0 && (entity.members.length === 0 || entity.members.length === 1 && !entity.members[0].role)) {
-        var deleteAction = actionDeleteRelation(entity.id, true);
+      if (_newFeature && entity && entity.type === "relation" && // no tags
+      Object.keys(entity.tags).length === 0 && // no parent relations
+      context.graph().parentRelations(entity).length === 0 && // no members or one member with no role
+      (entity.members.length === 0 || entity.members.length === 1 && !entity.members[0].role)) {
+        var deleteAction = actionDeleteRelation(
+          entity.id,
+          true
+          /* don't delete untagged members */
+        );
         context.perform(deleteAction, _t("operations.delete.annotation.relation"));
         context.validator().validate();
       }
@@ -76290,7 +77755,10 @@ ${content}</tr>
           return [];
         var graph = context.graph();
         var limitToNodes;
-        if (context.map().editableDataEnabled(true) && context.map().isInWideSelection()) {
+        if (context.map().editableDataEnabled(
+          true
+          /* skipZoomCheck */
+        ) && context.map().isInWideSelection()) {
           limitToNodes = new Set(utilGetAllNodes(context.selectedIDs(), graph));
         } else if (!context.map().editableDataEnabled()) {
           return [];
@@ -76309,7 +77777,7 @@ ${content}</tr>
               var sharedParentNodes = sharedParents[0].nodes;
               return sharedParentNodes.indexOf(node1.id) - sharedParentNodes.indexOf(node2.id);
             } else {
-              return parseFloat(parents1[0].id.slice(1)) - parseFloat(parents2[0].id.slice(1));
+              return Number(parents1[0].id.slice(1)) - Number(parents2[0].id.slice(1));
             }
           } else if (parents1.length || parents2.length) {
             return parents1.length - parents2.length;
@@ -76500,8 +77968,14 @@ ${content}</tr>
       var latestHash = computedHash();
       if (_cachedHash !== latestHash) {
         _cachedHash = latestHash;
-        window.history.replaceState(null, computedTitle(false), latestHash);
-        updateTitle(true);
+        window.history.replaceState(null, computedTitle(
+          false
+          /* includeChangeCount */
+        ), latestHash);
+        updateTitle(
+          true
+          /* includeChangeCount */
+        );
         const q = utilStringQs(latestHash);
         if (q.map) {
           corePreferences("map-location", q.map);
@@ -76510,7 +77984,10 @@ ${content}</tr>
     }
     var _throttledUpdate = throttle_default(updateHashIfNeeded, 500);
     var _throttledUpdateTitle = throttle_default(function() {
-      updateTitle(true);
+      updateTitle(
+        true
+        /* includeChangeCount */
+      );
     }, 500);
     function hashchange() {
       if (window.location.hash === _cachedHash)
@@ -76587,7 +78064,7 @@ ${content}</tr>
   }
   var X = {
     name: "x",
-    handles: ["w", "e"].map(type2),
+    handles: ["w", "e"].map(type),
     input: function(x, e) {
       return x == null ? null : [[+x[0], e[0][1]], [+x[1], e[1][1]]];
     },
@@ -76597,7 +78074,7 @@ ${content}</tr>
   };
   var Y = {
     name: "y",
-    handles: ["n", "s"].map(type2),
+    handles: ["n", "s"].map(type),
     input: function(y, e) {
       return y == null ? null : [[e[0][0], +y[0]], [e[1][0], +y[1]]];
     },
@@ -76607,7 +78084,7 @@ ${content}</tr>
   };
   var XY = {
     name: "xy",
-    handles: ["n", "w", "e", "s", "nw", "ne", "sw", "se"].map(type2),
+    handles: ["n", "w", "e", "s", "nw", "ne", "sw", "se"].map(type),
     input: function(xy) {
       return xy == null ? null : number22(xy);
     },
@@ -76615,7 +78092,7 @@ ${content}</tr>
       return xy;
     }
   };
-  function type2(t) {
+  function type(t) {
     return { type: t };
   }