Parallel replication causes failed assert while restarting

--source include/master-slave.inc

--connection slave

--source include/stop_slave.inc

--let $old_parallel= `select @@GLOBAL.slave_parallel_threads`

SET GLOBAL slave_parallel_threads=8;

--source include/start_slave.inc

--let $rpl_server_no= 2

--source include/rpl_restart_server.inc

--connection slave

--eval SET GLOBAL slave_parallel_threads= $old_parallel

--source include/start_slave.inc

--source include/rpl_end.inc

rpl.tmp 'mix'                            [ fail ]  Found warnings/errors in server log file!

        Test ended at 2021-04-05 09:19:24

line

mysqld: sql/sql_list.h:642: void ilink::assert_linked(): Assertion `prev != 0 && next != 0' failed.

mysqld: sql/sql_list.h:642: void ilink::assert_linked(): Assertion `prev != 0 && next != 0' failed.

mysqld: sql/sql_list.h:642: void ilink::assert_linked(): Assertion `prev != 0 && next != 0' failed.

mysqld: sql/sql_list.h:642: void ilink::assert_linked(): Assertion `prev != 0 && next != 0' failed.

Attempting backtrace. You can use the following information to find out

^ Found warnings in /home/sachin/10.3/mysql-test/var/log/mysqld.2.err

ok