showLeaveRoomAlert ran its whole body inside client.getRoom(roomId)?.use { }.
When getRoom returned null, which happens for a room the client can no longer
resolve, the body was skipped without writing any state: leaveAction stayed
Uninitialized, so no confirmation dialog and no error was displayed and
Leave room appeared to do nothing at all.
Handle the missing room explicitly and surface it as a failure, which
AsyncActionView already renders with the generic error dialog. leaveRoom used
a !! for the same lookup, so it reported the miss as a NullPointerException;
it now throws the same named exception.
hayaksi1
04dcc14eaa