anchor.diff:      Data3 = nebula2_utils:update_data_system_metadata(CList, Data2, State),
       Data4 = nebula2_db:marshall(Data3),
       case nebula2_db:update(Pid, Oid, Data4) of
  -		{ok, _Updated} ->
  -			{true, Req, State};
  -		_  ->
  -			{false, Req, State}
  +        {ok, _Updated} ->
  +            {true, Req, State};
  +        _  ->
  +            {false, Req, State}
       end.
   
   %% ====================================================================
  
positive.code: 
  %% @doc Update a CDMI dataobject
  -spec nebula2_dataobjects:update_dataobject(cowboy_req:req(),
  											cdmi_state(),
  											object_oid(),
  											map()) -> {boolean(), cowboy_req:req(), cdmi_state()}.
  update_dataobject(Req, State, Oid, NewData) when is_tuple(State), is_binary(Oid), is_map(NewData) ->
      ?nebMsg("Entry"),
      {Pid, _EnvMap} = State,
  
negative.code: %% ====================================================================
  %% eunit tests
  %% ====================================================================
  -ifdef(EUNITX).
  nebula2_dataobjects_test_() ->
      {foreach,
       fun() ->
  