anchor.diff:  %%            neighborhood may contain updated node IDs though!
   -spec trigger_update(OldNeighborhood::nodelist:neighborhood(),
                        RndView::[node:node_type()],
  -                     OtherNeighborhood::nodelist:neighborhood())
  +                     OtherNodes::[node:node_type()])
           -> NewNeighborhood::nodelist:neighborhood().
  -trigger_update(OldNeighborhood, MyRndView, OtherNeighborhood) ->
  +trigger_update(OldNeighborhood, MyRndView, OtherNodes) ->
       % update node ids with information from the other node's neighborhood
  -    OldNeighborhood2 =
  -        nodelist:update_ids(OldNeighborhood,
  -                            nodelist:to_list(OtherNeighborhood)),
  -    PredL = get_pred_list_length(),
  -    SuccL = get_succ_list_length(),
  -    NewNeighborhood1 =
  -        nodelist:add_nodes(OldNeighborhood2, MyRndView, PredL, SuccL),
  +    OldNeighborhood2 = nodelist:update_ids(OldNeighborhood, OtherNodes),
       NewNeighborhood2 =
  -        nodelist:merge(NewNeighborhood1, OtherNeighborhood, PredL, SuccL),
  +        nodelist:add_nodes(OldNeighborhood2, lists:append(MyRndView, OtherNodes),
  +                           get_pred_list_length(), get_succ_list_length()),
   
       OldView = nodelist:to_list(OldNeighborhood2),
       NewView = nodelist:to_list(NewNeighborhood2),
  
positive.code:             true  -> RandViewSize + 1;
              false -> RandViewSize
          end,
      OtherNeighborhood =
          nodelist:mk_neighborhood(NewCache, nodelist:node(Neighborhood),
                                   get_pred_list_length(), get_succ_list_length()),
      NewNeighborhood = trigger_update(Neighborhood, [], OtherNeighborhood),
      {{node_discovery}, {NewNeighborhood, RandViewSizeNew, NewCache, Churn}}.
  
  -spec trigger_action(State::state())
  
negative.code:           {ChangeReason::rm_loop:reason(), state()}.
  new_pred(State, NewPred) ->
      % if we do not want to trust notify_new_pred messages to provide an alive node, use this instead:
  %%     trigger_update(OldNeighborhood, [], [NewPred]),
      % we trust NewPred to be alive -> integrate node:
      {{unknown}, update_nodes(State, [NewPred], [], null)}.
  
  