anchor.diff:              case large_obj_partial_update(Key, HeadBin, IndexStart, HeadOffset, HeadSize) of
                   {error, Cause} ->
                       throw({error, Cause});
  -                _ -> nop
  +                _ ->
  +                    void
               end,
  +
               %% middle
               Rest3 = lists:foldl(
                         fun(Index, << MidBin:ChunkedObjLen/binary, Rest2/binary >>) ->
  
positive.code:                                        LargeObjectProp, ?DEF_LOBJ_CHUNK_OBJ_LEN),
      IndexStart = Start div ChunkedObjLen + 1,
      IndexEnd = End div ChunkedObjLen + 1,
      _LastChunkSize = case IndexStart =:= IndexEnd of
          true ->
              Offset = Start rem ChunkedObjLen,
              Size = End - Start + 1,
  
negative.code:                       end,
                        Rest,
                        lists:seq(IndexStart + 1, IndexEnd - 1)),
  
              %% tail
              TailOffset = 0,
              TailSize = End rem ChunkedObjLen + 1,
  