anchor.diff:  
   -spec handoff_acc([term()], [term()], state()) -> [term()].
   handoff_acc(HandoffAcc, LocalAcc, State) ->
  -    InAcc = HandoffAcc++LocalAcc,
  +    InAcc = LocalAcc++HandoffAcc,
       reduce(InAcc, State, "reducing handoff").
   
   %% @doc Actually evaluate the aggregation function.
  
positive.code: -include("riak_kv_js_pools.hrl").
  
  -record(state, {acc :: list(),
                  delay :: integer(),
                  delay_max :: integer(),
                  p :: riak_pipe_vnode:partition(),
  
negative.code: 
  %% @doc The archive is the accumulator.
  -spec archive(state()) -> {ok, list()}.
  archive(#state{acc=Acc, inacc=InAcc}) ->
      %% just send state of reduce so far
      {ok, Acc ++ lists:reverse(InAcc)}.
  
  %% @doc Handoff simply concatenates the accumulator from the remote
  %% worker with the accumulator from this worker, and immediately
  