Moving to r0 API: Fix bug in joinRoom introduced by sync V2: according to the function description, the full state of the room must be known before calling the succcess callback.
Moving to r0 API: Fix bug in joinRoom introduced by sync V2: according to the function description, the full state of the room must be known before calling the succcess callback.

matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk