anchor.diff:  -spec is_es_schema_error(Error :: binary()) -> boolean().
   is_es_schema_error(<<"mapper_parsing_exception">>) -> true;
   is_es_schema_error(<<"strict_dynamic_mapping_exception">>) -> true;
  +is_es_schema_error(<<"illegal_argument_exception">>) -> true;
   is_es_schema_error(_) -> false.
   
   
  
positive.code:                 {ErrorType, ErrorReason, _Error} ->
                      case is_es_schema_error(ErrorType) of
                          true -> {rejected, retrieve_rejected_field(ErrorReason), ErrorReason};
                          false -> {PrevSeq, {Seq, ErrorReason}}
                      end
              end;
              (_, Acc) -> Acc  % ignore rest of response when first error is found 
  
negative.code:     end.
  
  
  %% @TODO VFS-6546 preserve longest conflicting xattr
  %%--------------------------------------------------------------------
  %% @private
  %% @doc
  