anchor.diff:                              [Node|lists:duplicate(length(Chain) - 1,
                                                     undefined)];
                           Pos ->
  -                            [Node|lists:nthtail(1, Pos)]
  +                            [Node|lists:nthtail(Pos, Chain)] ++
  +                                lists:duplicate(length(Chain) - Pos, undefined)
                       end;
                   Nodes ->
                       ?log_error(
  
positive.code:                           catch ns_vbm_sup:set_replicas(Src, Bucket, R)
                    end, NodesReplicas).
  
  state_color(active) ->
      "color=green";
  state_color(pending) ->
  
negative.code:                 R = {Src, Dst, V} <- AllRep],
      ["digraph G { rankdir=LR; ranksep=6;", SubGraphs, Edges, "}"].
  
  
  -spec sanify(string(), map(), [atom()]) -> map().
  sanify(Bucket, Map, Servers) ->
      {ok, States, Zombies} = current_states(Servers, Bucket),
      [sanify_chain(Bucket, States, Chain, VBucket, Zombies)
  