anchor.diff:      [{{DirId, 0}, CurrentNewFiles}] = ets:lookup(
           ls_sub_cache_name(), {DirId, 0}
       ),
  +    [{{DirId, last_children_count}, LastChildrenCount}] = ets:lookup(
  +        ls_sub_cache_name(), {DirId, last_children_count}
  +    ),
       ets:insert(ls_sub_cache_name(), {{DirId, 0}, [FileId | CurrentNewFiles]}),
  -    ok.
  +    file_record(SessionId, DirId, true, LastChildrenCount).
   
   
   % Resolve ETS identifier
  
positive.code:                 {ok, DirId} = logical_file_manager:mkdir(SessionId, Path),
                  DirId
          end,
          file_record(SessionId, FileId)
      catch Error:Message ->
          ?error_stacktrace(
  
negative.code:     ok.
  
  
  add_new_file_to_cache(SessionId, FileId, DirId) ->
      [{{DirId, size}, CurrentSize}] = ets:lookup(
          ls_sub_cache_name(), {DirId, size}
      ),
  