Can't create table with ENCRYPTED=DEFAULT when innodb_default_encryption_key_id!=1

MariaDB [db1]> SET GLOBAL innodb_encrypt_tables=OFF;

Query OK, 0 rows affected (0.00 sec)

MariaDB [db1]> SET SESSION innodb_default_encryption_key_id=2;

Query OK, 0 rows affected (0.00 sec)

MariaDB [db1]> CREATE TABLE unencrypted_tab (id int primary key);

ERROR 1005 (HY000): Can't create table `db1`.`unencrypted_tab` (errno: 140 "Wrong create options")

MariaDB [db1]> SHOW WARNINGS;

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

| Level   | Code | Message                                                                        |

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

| Warning |  140 | InnoDB: innodb_encrypt_tables=OFF only allows ENCRYPTION_KEY_ID=1              |

| Error   | 1005 | Can't create table `db1`.`unencrypted_tab` (errno: 140 "Wrong create options") |

| Warning | 1030 | Got error 140 "Wrong create options" from storage engine InnoDB                |

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

3 rows in set (0.00 sec)

MariaDB [db1]> SET SESSION innodb_default_encryption_key_id=1;

Query OK, 0 rows affected (0.00 sec)

MariaDB [db1]> CREATE TABLE unencrypted_tab (id int primary key);

Query OK, 0 rows affected (0.01 sec)

MariaDB [db1]> DROP TABLE unencrypted_tab;

Query OK, 0 rows affected (0.01 sec)

MariaDB [db1]> SET SESSION innodb_default_encryption_key_id=2;

Query OK, 0 rows affected (0.00 sec)

MariaDB [db1]> CREATE TABLE unencrypted_tab (id int primary key) ENCRYPTED=NO;

Query OK, 0 rows affected (0.01 sec)