/**
  * Gets one item from the DB, regardless of whether it's been soft-deleted or not
  * @param array $query_params like EEM_base::get_all's $query_params
  * @return EE_Soft_Delete_Base_Class
  */
 public function get_one_deleted_or_undeleted($query_params = array())
 {
     $query_params = $this->_alter_query_params_so_deleted_and_undeleted_items_included($query_params);
     return parent::get_one($query_params);
 }