This should speed up loading the archived rooms. One of the reasons it
was so slow, is because we were loading all room members!
Additionally this may work around a bug in Synapse, where rooms stuck in
their partial state may block sync indefinitely.
Relates to https://github.com/famedly/product-management/issues/2250
This completely redoes the requestUser function.
It now doesn't stop requesting a user forever just because of a network
error. But redundant calls are still deduplicated, however their
parameters are taken into account now.
It also now only calls onUpdate and onRoomState when there is actually
new state. This way apps can just listen to updates to rerender instead
of having to implement the deduplication themselves.
It also now doesn't treat member events without membership as "join"
anymore. And lookup errors don't cause an empty user to get inserted
into the room state.
In general this should still request the profile from the server, if the
displayname is unset in a leave event, but it should also allow the app
to actually settle in the tests.
Nicolas Werner
td
Malin Errenst
Krille
Lukas Lihotzki
Marcus Hoffmann