protected function _beforeToHtml()
 {
     foreach ($this->getMenuItems() as $item) {
         $this->addModelTags($item);
     }
     return parent::_beforeToHtml();
 }
 protected function _beforeToHtml()
 {
     if ($this->_categoriesCache !== null) {
         foreach ($this->_categoriesCache as $category) {
             $this->addModelTags($category);
         }
     }
     return parent::_beforeToHtml();
 }