anchor.diff:                          {init_nodes, ns_node_disco:nodes_actual_proper()}),
       Ref.
   
  +
   unsubscribe(Name, Ref) ->
       gen_event:delete_handler(Name, {?MODULE, Ref}, unsubscribed).
  +
   
   %% We don't need the name for this because it's in the state of the
   %% handler installed on ns_node_disco_events
  
positive.code:                              unsubscribed).
  
  
  %% gen_event callbacks
  code_change(_OldVsn, State, _Extra) ->
      {ok, State}.
  
  init(State) ->
      {ok, State}.
  
negative.code:     KeepNodeRefs = [NR || NR = {N, _} <- NodeRefs, not lists:member(N, Nodes)],
      {ok, State#subscribe_all_state{noderefs=NewNodeRefs ++ KeepNodeRefs}}.
  
  
  handle_info(_Msg, State) ->
      {ok, State}.
  
  
  terminate(Reason, #subscribe_all_state{noderefs=NodeRefs, name=Name}) ->
      error_logger:info_msg("~p removing subscribe_all handler ~p: ~p~n",
  