galera.galera_bf_kill fails in CIs regularly with wrong result

galera.galera_bf_kill 'innodb'           w2 [ fail ]

        Test ended at 2022-05-27 02:55:31

CURRENT_TEST: galera.galera_bf_kill

--- /usr/share/mysql/mysql-test/suite/galera/r/galera_bf_kill.result	2022-05-27 00:48:35.000000000 -0400

+++ /dev/shm/var/2/log/galera_bf_kill.reject	2022-05-27 02:55:31.289221808 -0400

@@ -8,7 +8,7 @@

 connection node_2;

 select * from t1;

 a	b

-2	1

+1	1

 disconnect node_2a;

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

 connection node_2a;

@@ -17,7 +17,7 @@

 connection node_2;

 select * from t1;

 a	b

-2	1

+1	1

 disconnect node_2a;

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

 connection node_2a;

@@ -28,7 +28,7 @@

 ALTER TABLE t1 DROP KEY b1;

 select * from t1;

 a	b

-2	1

+1	1

 disconnect node_2a;

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

 connection node_2a;

@@ -43,7 +43,7 @@

 ALTER TABLE t1 DROP KEY b2;

 select * from t1;

 a	b

-2	1

+1	1

 disconnect node_2a;

 disconnect node_2b;

 connection node_1;

mysqltest: Result content mismatch