MariaBackup --backup does not work with non-default aria_block_size

--exec mkdir -p $MYSQL_TMP_DIR/data/mysql

--exec $MYSQLD_BOOTSTRAP_CMD --aria-block-size=32768 --datadir=$MYSQL_TMP_DIR/data < $MYSQLTEST_VARDIR/log/bootstrap.sql

--let $restart_parameters= --datadir=$MYSQL_TMP_DIR/data --aria-block-size=32768

--source include/restart_mysqld.inc

select @@aria_block_size;

--error 0,1

--exec sh -c "$XTRABACKUP --backup --target-dir=$MYSQL_TMP_DIR/backup -uroot --socket=$MASTER_MYSOCK > $MYSQL_TMP_DIR/backup.log 2>&1"

if ($sys_errno)

{

  --exec tail $MYSQL_TMP_DIR/backup.log

}

# restart: --datadir=MYSQLTEST_VARDIR/tmp/data --aria-block-size=32768

select @@aria_block_size;

@@aria_block_size

32768

[00] 2024-10-27 02:16:57 mariabackup: Generating a list of tablespaces

[00] 2024-10-27 02:16:57 Connecting to MariaDB server host: localhost, user: root, password: not set, port: not set, socket: /mnt8t/bld/10.11-asan/mysql-test/var/tmp/mysqld.1.sock

[00] 2024-10-27 02:16:57 Retrying read of log at LSN=58290

[00] 2024-10-27 02:16:57 Connecting to MariaDB server host: localhost, user: root, password: not set, port: not set, socket: /mnt8t/bld/10.11-asan/mysql-test/var/tmp/mysqld.1.sock

[00] 2024-10-27 02:16:57 BACKUP STAGE START

[00] 2024-10-27 02:16:57 Acquiring BACKUP LOCKS...

[00] 2024-10-27 02:16:57 Copying /mnt8t/bld/10.11-asan/mysql-test/var/tmp/data//aria_log_control to /mnt8t/bld/10.11-asan/mysql-test/var/tmp/backup/aria_log_control

[00] 2024-10-27 02:16:57         ...done

[00] 2024-10-27 02:16:57 Loading aria_log_control.

[00] FATAL ERROR: 2024-10-27 02:16:57 Can't open Aria control file (0)