anchor.diff:          {get_count, Pid} ->
               Pid ! {count, erlang:get(count)},
               fake_loop();
  +        %% Original tests do not expect replies
  +        %% {'$vnode_proxy_ping', ReplyTo, Ref, Msgs} ->
  +        %%     ReplyTo ! {Ref, Msgs},
  +        %%     fake_loop();
           _Msg ->
               update_msg_counter(),
               fake_loop()
  
positive.code:             %% we can adjust our mailbox estimate accordingly.
              case RequestState of
                  undefined ->
                      Mailbox2 = Mailbox + 2,
                      RequestState2 = send_proxy_ping(Pid, Mailbox2);
                  _ ->
                      Mailbox2 = Mailbox + 1,
                      RequestState2 = RequestState
              end,
              Counter3 = Counter2;
          Interval ->
              %% Time to directly check the mailbox size. This operation may
  
negative.code:             State2 = State
      end,
  
      Mailbox2 = case Mailbox =< Threshold of
                     true ->
                         Pid ! Msg,
                         Mailbox + 1;
                     false ->
                         handle_overload(Msg, State),
                         Mailbox
                 end,
  
      Counter2 = Counter + 1,
      case Counter2 of
          RequestInterval ->
  