The test json used for mocking a sync response contained an ill-formed
event with a room_id key present in the event. Since the deserialization
ignores the room_id key, this resulted in the client's membership state
evaluating to left going by the contents of the state events, despite
the room being in the "joined" section of the sync response. This is a
violation of the spec.
Amanda Graven
248fff370a