Galera test failure on galera_bf_kill

galera.galera_bf_kill 'debug'            w4 [ fail ]

        Test ended at 2025-11-27 12:34:14

CURRENT_TEST: galera.galera_bf_kill

mysqltest: At line 120: query 'select * from t1' failed: ER_QUERY_INTERRUPTED (1317): Query execution was interrupted

The result from queries just before the failure was:

< snip >

connection node_2;

ALTER TABLE t1 ADD UNIQUE KEY b2(b);

ALTER TABLE t1 DROP KEY b2;

select * from t1;

a	b

2	1

disconnect node_2a;

disconnect node_2b;

connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;

connect node_2b, 127.0.0.1, root, , test, $NODE_MYPORT_2;

connection node_2a;

SET SESSION wsrep_on=OFF;

begin;

update t1 set a =5, b=2;

connection node_2;

ALTER TABLE t1 ADD UNIQUE KEY b3(b);

connection node_2b;

SET SESSION wsrep_sync_wait=0;

connection node_2a;

select * from t1;