anchor.diff:                                                    delete_fsm_pid = Pid}};
   initiating_file_delete(_, State) ->
       {next_state, initiating_file_delete, State}.
  +
  +waiting_file_delete(_, State) ->
  +    {next_state, waiting_file_delete, State}.
   
   paused(_, State) ->
       {next_state, paused, State}.
  
positive.code: waiting_file_delete(_, _From, State) ->
      {reply, ok, waiting_file_delete, State}.
  
  paused(status, _From, State) ->
      Reply = {ok, {paused, status_data(State)}},
      {reply, Reply, paused, State};
  
negative.code:          fetching_next_fileset/3,
           initiating_file_delete/2,
           initiating_file_delete/3,
           waiting_file_delete/2,
           waiting_file_delete/3,
           paused/2,
           paused/3,
  