t1:
+ id: 1
+ member_role: "some"
+ member_type: "way"
+ member_id: 3
+ version: 1
+t2:
id: 1
member_role: "some"
member_type: "node"
+ member_id: 5
+ version: 1
+t3:
+ id: 1
+ member_role: "some"
+ member_type: "relation"
member_id: 3
version: 1
+t4:
+ id: 3
+ member_role: "some"
+ member_type: "node"
+ member_id: 5
+ version: 1