anchor.diff:      % to handle a possible overflow
       {new_leaf, Nodes} ->
          ?debugMsg("Returning new leaf"),
  +       ?debugVal(Nodes),
   
          % Nodes2 is a list of tuples that contain an MBR and positions
          % in file where children of the node with this MBR was written
  
positive.code:     {ok, Pos} = couch_file:append_term(Fd, H),
      write_nodes(Fd, T, [Pos|Acc]).
  
  
  
  %%%%% Helpers %%%%%
  
negative.code: 
  
  % XXX vmx: rename to _test when it should be run again
  seedtree_write_single_test() ->
      % insert single new node
      TargetTreeNodeNum = 7,
      {ok, {Fd, {RootPos, TargetTreeHeight}}} = vtree_test:build_random_tree(
  