ER_EVENT_STORE_FAILED upon creating event under some uca140_xxx_nopad_xx_xx collations

SET NAMES 'utf8mb3' COLLATE 'uca1400_swedish_nopad_ai_ci';

CREATE TABLE t (a CHAR(8));

INSERT INTO t VALUES ('foo');

--error ER_TRUNCATED_WRONG_VALUE

ALTER TABLE t MODIFY a INT;

CREATE EVENT ev ON SCHEDULE EVERY 1 HOUR DO BEGIN END;

# Cleanup

DROP EVENT ev;

DROP TABLE t;

query 'CREATE EVENT ev ON SCHEDULE EVERY 1 HOUR DO BEGIN END' failed: ER_EVENT_STORE_FAILED (1538): Failed to store event body. Error code 2 "No such file or directory" from storage engine