Table-less scalar subquery with LIMIT 0 returns 1 instead of NULL

MariaDB [logic_bug_focus]> SELECT (SELECT 1 LIMIT 0);

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

| (SELECT 1 LIMIT 0) |

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

|                  1 |

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

1 row in set (0.001 sec)

mysql> SELECT (SELECT 1 LIMIT 0);

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

| (SELECT 1 LIMIT 0) |

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

|               NULL |

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

1 row in set (0.000 sec)