Mage_Catalog_Block_Navigation - improved cache key

gistfile1.txt

//Mage_Catalog_Block_Navigation::
public function getCacheKeyInfo(){
        $shortCacheId = array(
            'CATALOG_NAVIGATION',
            Mage::app()->getStore()->getId(),
            Mage::getDesign()->getPackageName(),
            Mage::getDesign()->getTheme('template'),
//            Mage::getSingleton('customer/session')->getCustomerGroupId(),
            'template' => $this->getTemplate(),
            'name' => $this->getNameInLayout(),
//            $this->getCurrenCategoryKey()
        );
        $cacheId = $shortCacheId;

        $shortCacheId = array_values($shortCacheId);
        $shortCacheId = implode('|', $shortCacheId);
        $shortCacheId = md5($shortCacheId);

//        $cacheId['category_path'] = $this->getCurrenCategoryKey();
        $cacheId['short_cache_id'] = $shortCacheId;

        return $cacheId;
    }