Ensure doors/signposts in instances work correctly
Ensure doors/signposts in instances work correctly

When creating an instance of the placeholder location (e.g. for a
subway station we do not have yet), `groups/instance/clone_location`
recreates doors/signposts. Since `Geo.prepConnects` is not necessarily
called afterwards, serializing the geometry data, e.g. for a move
command response, may start traversing large portions of the world's
game object graph. As a quick&dirty fix, invoke `apiGeometryUpdated`
explicitly for newly created location instances.

See also: 1329663, 76b3c25
Fixes https://trello.com/c/oHZN6Qwv

KaiyonAlatar/eleven-gsjs,ElevenGiants/eleven-gsjs,yelworc/eleven-gsjs,Whizy/eleven-gsjs