anchor.diff:                                   internal_join(N, S)
                            end, State1, JoiningNodes),
   
  -    {reply, ok, State2#state{pending=Pending1}};
  +    {reply, ok, State2};
   
   handle_call({leave, Node}, From, State0) ->
       %% Perform leave.
  
positive.code:     State#state{pending=Pending, connections=Connections}.
  
  sync_internal_join(#{name := Name} = Node,
                From,
                #state{pending=Pending0,
                       sync_joins=SyncJoins0,
                       connections=Connections0,
  
negative.code:             Open =:= Required;
          _ ->
              false
      end.