/**
* Save cache
*
* @param array $tags
* @return Mage_Core_Model_Design_Config
*/
public function saveCache($tags = null)
{
if ($this->_canUseCache()) {
$tags = is_array($tags) ? $tags : array();
if (!in_array(Mage_Core_Model_Config::CACHE_TAG, $tags)) {
$tags[] = Mage_Core_Model_Config::CACHE_TAG;
}
parent::saveCache($tags);
}
return $this;
}
