anchor.diff:      _Normal ->
           % normal
           DocUrl = absolute_uri(Req, [$/, DbName, $/, DocId]),
  -        case fabric:update_doc(Db, Doc2, [{user_ctx, Ctx}]) of
  +        case fabric:update_doc(Db, Doc2, Options) of
           {ok, NewRev} ->
               HttpCode = 201;
           {accepted, NewRev} ->
  
positive.code: 
  db_req(#httpd{method='POST', path_parts=[DbName], user_ctx=Ctx}=Req, Db) ->
      couch_httpd:validate_ctype(Req, "application/json"),
      Doc = couch_doc:from_json_obj(couch_httpd:json_body(Req)),
      Doc2 = case Doc#doc.id of
          <<"">> ->
  
negative.code:     "ok" ->
          % async_batching
          spawn(fun() ->
                  case catch(fabric:update_doc(Db, Doc2, Options)) of
                  {ok, _} -> ok;
                  {accepted, _} -> ok;
                  Error ->
  