anchor.diff:                 _ ->
                     riak_object:get_update_metadata(RObj)
             end,
  -    NewMD = dict:store(<<"X-Riak-Tag">>, make_vtag(RObj),
  -                       dict:store(<<"X-Riak-Last-Modified">>, erlang:now(),
  +    NewMD = dict:store(?MD_VTAG, make_vtag(RObj),
  +                       dict:store(?MD_LASTMOD, erlang:now(),
                                     MD0)),
       riak_object:apply_updates(riak_object:update_metadata(RObj, NewMD)).
   
  
positive.code: code_change(_OldVsn, StateName, State, _Extra) -> {ok, StateName, State}.
  
  %%
  %% Update X-Riak-Tag and X-Riak-Last-Modified in the object's metadata, if
  %% necessary.
  %%
  %% @private
  
negative.code: %-endif.
  -include_lib("riak_kv_vnode.hrl").
  -include_lib("riak_kv_js_pools.hrl").
  -include("riak_kv_wm_raw.hrl").
  
  -behaviour(gen_fsm).
  -define(DEFAULT_OPTS, [{returnbody, false}, {update_last_modified, true}]).
  