anchor.diff:                                                    upd_fail_count = UpdFail,
                                                     regen_fail_count = RegenFail
                                                   } = Stats,
  -                          feedbackDestPid = FBDest,
  -                          feedbackKvv = {MissingOnOther, MyIOtherKvTree}
  +                          fb_dest_pid = FBDest, fb_send_kvv = MissingOnOther,
  +                          other_kv_tree = MyIOtherKvTree
                           })
     when element(1, Op) =:= ?key_upd;
          element(1, Op) =:= ?interval_upd ->
  
positive.code: 
      NewState =
          State#rr_resolve_state{stats = Stats#resolve_stats{resolve_started = ResStarted},
                                 feedbackDestPid = undefined},
      shutdown(resolve_ok, NewState);
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
negative.code:     % allow the garbage collection to clean up the KvvList here:
      NewState = State#rr_resolve_state{operation = {?key_upd, [], []},
                                        stats = Stats#resolve_stats{diff_size = ToUpdate},
                                        fb_send_kvv = lists:append(FbKVV, KvvList)},
      
      if ToUpdate =:= 0 ->
             % use the same options as above in get_state_response:
  