/**
  * @param array $data
  * @return array
  */
 protected function _unsetUnlockedData($data = [])
 {
     if (!empty($this->_unlocked)) {
         foreach ($this->_unlocked as $key => $val) {
             if (isset($data[$val])) {
                 unset($data[$val]);
             }
         }
     }
     return parent::_unsetUnlockedData($data);
 }