+ timestamp: 2009-04-21 09:50:57
+ visible: true
+ version: 1
+
+public_used_relation:
+ relation_id: 5
+ changeset_id: 2
+ timestamp: 2009-04-22 00:30:03
+ visible: true
+ version: 1
+
+public_visible_relation:
+ relation_id: 6
+ changeset_id: 2
+ timestamp: 2009-04-22 00:34:12
+ visible: true