The fix here is correcting the access of `user.Country`. The deicision
to have null users display is because this is the best we can do (if
osu-web could not resolve the user). We still want the users in the
lobby to be aware of this user's presence, rather than hiding them from
view.
osu-stable does a similar thing, showing these users as `[Loading]`. I
decided to go with blank names instead because having *any* text there
causes confusion. We can iterate on this in future design updates.
Fixes test failures due to not allowing to do so, therefore inverting
execution order in some cases - for example, calling
JoinRoom(room);
LeaveRoom();
on the update thread would invert execution order due to the first being
unscheduled but the second being scheduled.
`getRoomUsers()` was not safe to call from the update thread, as
evidenced by the test failures. This was due to the fact that the added
reset event could never actually be set from within the method, as the
wait was blocking the scheduled set from ever proceeding.
Resolve by allowing the scheduled copy & set to run inline if on the
update thread already.
It turns out that the changelog code was semi-intentionally relying on
the request to get release streams to be slow to initially show the
listing of all streams.
Locally suppress the base tab control logic to fix this.