code: protected function _afterLoad()
      {
          $info = $this->getUnserializedInfo();
  
          $this->logging = $info['logging'];
          $this->action = $info['action'];
          $this->design = $info['design'];
          $this->blocks = $info['blocks'];
          $this->models = $info['models'];
          $this->collections = $info['collections'];
          $this->queries = $info['queries'];
          $this->timers = $info['timers'];
          $this->emails = $info['emails'];
  
          return parent::_afterLoad();
      }
docs: Initialize fields that are saved in info blob
  
  @return Mage_Core_Model_Abstract