drupal_valid_path() Notice: Undefined variable: form_item

I noticed some invalid code in path.inc, drupal_valid_path() while stepping through.

$form_item doesn't exist, and the keys being referenced don't exist in the menu_router table. (link_path, link_title)

$item['link_path'] and $item['link_title'] are being used in _menu_link_translate() and _menu_item_localize(), so I fixed the var and array key names to populate those.

Relative code in core/includes/path.inc

if ($item = db_query("SELECT * FROM {menu_router} where path = :path", array(':path' => $path))->fetchAssoc()) {
  $item['link_path']  = $form_item['link_path'];
  $item['link_title'] = $form_item['link_title'];
  $item['external']   = FALSE;
  $item['options'] = '';
  _menu_link_translate($item);
}

Cleaned up version.

if ($item = db_query("SELECT * FROM {menu_router} where path = :path", array(':path' => $path))->fetchAssoc()) {
  $item['link_path']  = $item['path'];
  $item['link_title'] = $item['title'];
  $item['external']   = FALSE;
  $item['options'] = '';
  _menu_link_translate($item);
}

That said, I'm not sure how menu link items are supposed to support wildcards. You can trigger this code by adding a menu item with "/%" somewhere in the path.