SHOW GRANTS does not quote role names properly for DEFAULT ROLE

MariaDB [(none)]> show grants for 'exploit'@'host';

+-------------------------------------------------------------------------------------------------------------------------------------------------------------+

| Grants for exploit@host |

+-------------------------------------------------------------------------------------------------------------------------------------------------------------+

| GRANT `role-exploit` TO `exploit`@`host` |

| GRANT USAGE ON *.* TO `exploit`@`host` IDENTIFIED BY PASSWORD '*' WITH MAX_STATEMENT_TIME 15.000000 |

| SET DEFAULT ROLE role-exploit FOR 'exploit'@'host'