Got error 127 and ER_CRASHED_ON_USAGE upon SELECT from temporary MyISAM table

CREATE TEMPORARY TABLE t1 (c VARCHAR(8)) ENGINE=MyISAM;

INSERT INTO t1 () VALUES ();

DELETE FROM t1 LIMIT 1;

SELECT * FROM t1 t1a, t1 t1b;

OPTIMIZE TABLE t1;

--error ER_CANT_DROP_FIELD_OR_KEY

ALTER TABLE t1 DROP x, CHANGE COLUMN IF EXISTS a b BINARY;

INSERT INTO t1 () VALUES ();

SELECT * FROM t1 t1a, t1 t1b;

mysqltest: At line 9: query 'SELECT * FROM t1 t1a, t1 t1b' failed: 1194: Table 't1' is marked as crashed and should be repaired

2019-05-31 16:35:51 139826620962560 [ERROR] Got error 127 when reading table '/data/bld/10.2-rel/mysql-test/var/tmp/mysqld.1/#sql6fe2_4_0'

2019-05-31 16:35:51 139826620962560 [ERROR] mysqld: Table 't1' is marked as crashed and should be repaired