message: Fix null pointer
  Check if users is null, not the room
diff: @@ -112,7 +112,7 @@ export default class UserProvider extends AutocompleteProvider {
  }
  onUserSpoke(user: RoomMember) {
  - if (this.room === null) return;
  + if (this.users === null) return;
  if (user.userId === MatrixClientPeg.get().credentials.userId) return;
  // Move the user that spoke to the front of the array
  