protected function deleteItem($data, $savedValues)
 {
     $item = $data["item"];
     unset($savedValues[$item]);
     $result = $this->manageChildren($item, true);
     if (false === $result) {
         $this->blocksRepository->rollback();
         return false;
     }
     $this->blocksRepository->commit();
     return $savedValues;
 }