Self-referencing node is being formatted wrong

Hi,

I have a content type which has a nodereference field that is being displayed via cck_blocks. So I'm able to create self-references. When referencing any other node, the CCK Block displays it as a Teaser, which is what I told it to do. Self-referencing nodes are however being displayed as Title (link), which is actually not that correct ;)
I stepped through the code (not entirely, sorry) and it seems that the formatter is being rewritten from "teaser" to "default" somewhere inside nodereference.

I modified theme_nodereference_formatter_default() to the following to get a bit of an insight:

/**
 * Theme function for 'default' nodereference field formatter.
 */
function theme_nodereference_formatter_default($element) {
  $output = '';
  if (!empty($element['#item']['nid']) && is_numeric($element['#item']['nid']) && ($title = _nodereference_titles($element['#item']['nid']))) {
    $output = l($title, 'node/'. $element['#item']['nid']);
  }
  
  // I added this:
  foreach(debug_backtrace() as $entry)
  {
    echo "\n -> ".$entry["function"];
    foreach($entry['args'] as $arg)
    {
      if(is_array($arg) && isset($arg['#formatter']))
      {
        echo " (".$arg['#formatter'].")";
      }
    }
  }
  //
  
  return $output;
}

The output is:

 -> theme_nodereference_formatter_default (default)
 -> call_user_func_array
 -> theme (default)
 -> drupal_render (default)
 -> drupal_render
 -> drupal_render
 -> drupal_render
 -> drupal_render
 -> node_view
 -> node_show
 -> node_page_view
 -> call_user_func_array
 -> menu_execute_active_handler
 -> theme_nodereference_formatter_default (teaser)
 -> call_user_func_array
 -> theme (teaser)
 -> theme_nodereference_formatter_full_teaser (teaser)
 -> call_user_func_array
 -> theme (teaser)
 -> content_format
 -> call_user_func_array
 -> module_invoke
 -> cck_blocks_block
 -> call_user_func_array
 -> module_invoke
 -> block_list
 -> theme_blocks
 -> call_user_func_array
 -> theme
 -> template_preprocess_page
 -> call_user_func_array
 -> theme

Best regards,
Lars