PersistedRepository issue with adding and messaging a room

[ashanhol]

This is an issue in AcountControllerIntegration that needs to be tackled post merge.
Persisted Repository throws exception(s) if you try to join an existing room, then tab back without leaving and try to create a room. WIERDLY enough, if you "continue" through those exceptions, it will create the room, but it won't list it on the main page- if you try to create it again it'll throw an "it exists" exception, you can only join through the /join command.
Persisted repo will throw exceptions inconsistently between joining/leaving/creating new rooms.