Fix issue with sending presence events to invalid servers
MODIFY
federationapi/consumers/roomserver.go
federationapi/consumers/roomserver.go
@@ -232,7 +232,7 @@ func (s *OutputRoomEventConsumer) processMessage(ore api.OutputNewRoomEvent, rew
}
func (s *OutputRoomEventConsumer) sendPresence(roomID string, addedJoined []types.JoinedHost) {
- joined := make([]gomatrixserverlib.ServerName, len(addedJoined))
+ joined := make([]gomatrixserverlib.ServerName, 0, len(addedJoined))
for _, added := range addedJoined {
joined = append(joined, added.ServerName)
}

Fix issue with sending presence events to invalid servers