fix minor typo civicrm_cache table

CRM/Core/BAO/Cache.php

@@ -172,7 +172,8 @@ class CRM_Core_BAO_Cache extends CRM_Core_DAO_Cache {
     // set the cache in memory
     $argString = "CRM_CT_{$group}_{$path}_{$componentID}";
     $cache = CRM_Utils_Cache::singleton();
-    $cache->set($argString, $dao->data);
+    $data = unserialize($dao->data);
+    $cache->set($argString, $data);
   }
 
   /**