Merged
requested to merge fix/participant-removed-from-server-group-chat-room-when-it-should-not into master
Do not remove participant from server group chat room if all its devices reach the left state but the participant is still in the list of active participants.
Instead fetch its devices once again to trigger reinvites for all its devices.
This fixes the "Reinvited after removed from group chat room while offline 2" test of the "Group Chat" suite.