anchor.diff:  -type option() :: {w, pos_integer()} |
                     {dw, pos_integer()} |
                     {timeout, pos_integer() | infinity} |
  -                  {detail, detail()}
  +                  {detail, detail()}.
   -type options() :: [option()].
   
   -record(state, {from :: {raw, integer(), pid()},
  
positive.code: -endif.
  -export([init/1, handle_event/3, handle_sync_event/4,
           handle_info/3, terminate/3, code_change/4]).
  -export([prepare/2, validate/2, execute/2, waiting_vnode/2, postcommit/2, finish/2]).
  
  
  -type detail_info() :: timing.
  
negative.code: %% necessary.
  %%
  %% @private
  update_last_modified(RObj) ->
      MD0 = case dict:find(clean, riak_object:get_update_metadata(RObj)) of
                {ok, true} ->
                    %% There have been no changes to updatemetadata. If we stash the
  