Trigger using a package-defined type is silently lost during mariadb-dump / restore

SET sql_mode=ORACLE;

CREATE DATABASE db1;

USE db1;

DELIMITER $$;

CREATE PACKAGE pkg AS

  TYPE rec IS RECORD (a INT, b VARCHAR(20));

END;

$$

DELIMITER ;$$

CREATE TABLE t1 (id INT, val VARCHAR(20));

DELIMITER $$;

CREATE TRIGGER trg BEFORE INSERT ON t1

FOR EACH ROW

DECLARE

  r pkg.rec;

BEGIN

  :NEW.val := CONCAT('r-', :NEW.id);

END;

$$

DELIMITER ;$$

--exec $MYSQL_DUMP --skip-comments --routines --triggers --databases db1 > $MYSQLTEST_VARDIR/tmp/i004.sql

DROP DATABASE db1;

--exec $MYSQL --force < $MYSQLTEST_VARDIR/tmp/i004.sql 2>&1

--echo # trigger_count should be 1 but is 0 -> trigger lost

SELECT COUNT(*) AS trigger_count FROM information_schema.triggers

WHERE event_object_schema='db1' AND trigger_name='trg';

--remove_file $MYSQLTEST_VARDIR/tmp/i004.sql

DROP DATABASE db1;

SET sql_mode=ORACLE;

CREATE DATABASE db1;

USE db1;

CREATE PACKAGE pkg AS

TYPE rec IS RECORD (a INT, b VARCHAR(20));

END;

$$

CREATE TABLE t1 (id INT, val VARCHAR(20));

CREATE TRIGGER trg BEFORE INSERT ON t1

FOR EACH ROW

DECLARE

r pkg.rec;

BEGIN

:NEW.val := CONCAT('r-', :NEW.id);

END;

$$

DROP DATABASE db1;

--------------

/*!50003 CREATE*/ /*!50017 DEFINER="root"@"localhost"*/ /*!50003 TRIGGER trg BEFORE INSERT ON t1

FOR EACH ROW

DECLARE

r pkg.rec;

BEGIN

:NEW.val := CONCAT('r-', :NEW.id);

END

*/

--------------

ERROR 4161 (HY000) at line 42: Unknown data type: '`pkg`.`rec`'

# trigger_count should be 1 but is 0 -> trigger lost

SELECT COUNT(*) AS trigger_count FROM information_schema.triggers

WHERE event_object_schema='db1' AND trigger_name='trg';

trigger_count

0