anchor.diff:                  send_change(Req, Change, SpaceId)
               catch
                   _:E ->
  -                    ?error_stacktrace("Cannot stream change of ~p due to: ~p", [Change, E])
  +                    % Can appear when document connected with deleted file_meta appears
  +                    ?debug_stacktrace("Cannot stream change of ~p due to: ~p", [Change, E])
               end,
               stream_loop(Req, State)
       after
  
positive.code:     lists:foreach(fun(Doc) ->
          notify(Pid, Ref, {ok, Doc})
      end, Docs);
  notify(Pid, Ref, {error, _Seq, Reason}) ->
      ?error("Changes stream terminated abnormally due to: ~p", [Reason]),
      Pid ! {Ref, stream_ended},
  
negative.code:             end
          catch
              _:Error3 ->
                  ?debug("Cannot fetch xattrs for changes, error: ~p", [Error3]),
                  <<"fetching_error">>
          end,
      Size =
  