Assertion `!table->pos_in_locked_tables' failed in tc_release_table upon altering table into S3 under lock

CREATE TABLE t1 (a INT);

LOCK TABLES t1 WRITE;

ALTER TABLE t1 ENGINE=S3;

# Cleanup

UNLOCK TABLES;

DROP TABLE t1;

mysqld: /data/src/10.5/sql/table_cache.cc:466: void tc_release_table(TABLE*): Assertion `!table->pos_in_locked_tables' failed.

190524 22:20:09 [ERROR] mysqld got signal 6 ;

#6  0x00007f0ac45aee67 in __assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x55abc50a57fa "!table->pos_in_locked_tables", file=file@entry=0x55abc50a5588 "/data/src/10.5/sql/table_cache.cc", line=line@entry=466, function=function@entry=0x55abc50a5e30 <tc_release_table(TABLE*)::__PRETTY_FUNCTION__> "void tc_release_table(TABLE*)") at assert.c:92

#7  0x00007f0ac45aef12 in __GI___assert_fail (assertion=0x55abc50a57fa "!table->pos_in_locked_tables", file=0x55abc50a5588 "/data/src/10.5/sql/table_cache.cc", line=466, function=0x55abc50a5e30 <tc_release_table(TABLE*)::__PRETTY_FUNCTION__> "void tc_release_table(TABLE*)") at assert.c:101

#8  0x000055abc4689ad8 in tc_release_table (table=0x7f0a9c1ad0a0) at /data/src/10.5/sql/table_cache.cc:466

#9  0x000055abc437e1c1 in close_thread_table (thd=0x7f0a9c000b10, table_ptr=0x7f0a9c000bf0) at /data/src/10.5/sql/sql_base.cc:1039

#10 0x000055abc4381160 in Locked_tables_list::unlink_all_closed_tables (this=0x7f0a9c004880, thd=0x7f0a9c000b10, lock=0x0, reopen_count=0) at /data/src/10.5/sql/sql_base.cc:2573

#11 0x000055abc4381546 in Locked_tables_list::reopen_tables (this=0x7f0a9c004880, thd=0x7f0a9c000b10, need_reopen=false) at /data/src/10.5/sql/sql_base.cc:2670

#12 0x000055abc4508464 in mysql_alter_table (thd=0x7f0a9c000b10, new_db=0x7f0a9c0052b8, new_name=0x7f0a9c0056c0, create_info=0x7f0ab2b7cce0, table_list=0x7f0a9c013468, alter_info=0x7f0ab2b7cc20, order_num=0, order=0x0, ignore=false) at /data/src/10.5/sql/sql_table.cc:10350

#13 0x000055abc45980d9 in Sql_cmd_alter_table::execute (this=0x7f0a9c013b20, thd=0x7f0a9c000b10) at /data/src/10.5/sql/sql_alter.cc:496

#14 0x000055abc4427743 in mysql_execute_command (thd=0x7f0a9c000b10) at /data/src/10.5/sql/sql_parse.cc:6347

#15 0x000055abc442ca55 in mysql_parse (thd=0x7f0a9c000b10, rawbuf=0x7f0a9c013388 "ALTER TABLE t1 ENGINE=S3", length=24, parser_state=0x7f0ab2b7e180, is_com_multi=false, is_next_command=false) at /data/src/10.5/sql/sql_parse.cc:8159

#16 0x000055abc44180cf in dispatch_command (command=COM_QUERY, thd=0x7f0a9c000b10, packet=0x7f0a9c008321 "", packet_length=24, is_com_multi=false, is_next_command=false) at /data/src/10.5/sql/sql_parse.cc:1829

#17 0x000055abc441688d in do_command (thd=0x7f0a9c000b10) at /data/src/10.5/sql/sql_parse.cc:1362

#18 0x000055abc458ef13 in do_handle_one_connection (connect=0x55abc7ab0700, put_in_cache=true) at /data/src/10.5/sql/sql_connect.cc:1413

#19 0x000055abc458ec57 in handle_one_connection (arg=0x55abc7ab0700) at /data/src/10.5/sql/sql_connect.cc:1309

#20 0x000055abc4ec31f7 in pfs_spawn_thread (arg=0x55abc7ab0350) at /data/src/10.5/storage/perfschema/pfs.cc:1862

#21 0x00007f0ac698a4a4 in start_thread (arg=0x7f0ab2b7f700) at pthread_create.c:456

#22 0x00007f0ac466bd0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97