anchor.diff:  %    MbrAndPosList = [{ParentMbr2, ChildrenPos2}],
   %    {ok, MbrAndPosList}.
   
  -    {RootNodes2, NewHeight2} = case Seedtree#seedtree_root.outliers of
  +    %{RootNodes2, NewHeight2} = case Seedtree#seedtree_root.outliers of
  +    {RootNodes2, HeightDiff} = case Seedtree#seedtree_root.outliers of
       [] ->
   %        ?debugMsg("No outliers"),
  -        {RootNodes, NewHeight};
  +        {RootNodes, 0};
       Outliers ->
  -        %?debugMsg("Outliers!!"),
  +        ?debugMsg("Outliers!!"),
   %        ?debugVal(TargetHeight),
           % insert outliers by creating a temporary root node
           {ok, TmpRootPos} = write_parent(Fd, RootNodes),
  
positive.code:     % Both, the new bulk loaded tree and targt tree have the same height
      % => create new common root
      Diff when Diff == 0 ->
      %?debugMsg("same height"),
          if
          length(MbrAndPosList) + 1 =< ?MAX_FILLED ->
              %Mbrs = [Mbr || {Mbr, Pos} <- MbrAndPosList],
  
negative.code:     Seedtree6_1 = seedtree_init(Fd6, RootPos6, 2),
      ?debugVal(Seedtree6_1),
      Seedtree6_2 = seedtree_insert_list(Seedtree6_1, Nodes6),
      {ok, Result6, Height6, HeightDiff6} = seedtree_write(
              Fd6, Seedtree6_2,
              TargetTreeHeight6 - Seedtree6_2#seedtree_root.height),
      ?debugVal(Result6),
  