MDEV-24481 : galera_3nodes.galera_vote_rejoin_mysqldump MTR failed: mysql_shutdown failed

Improve test case to wait until cluster membership is
correct.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>

mysql-test/suite/galera_3nodes/disabled.def

@@ -12,7 +12,6 @@
 
 galera_2_cluster : MDEV-32631 galera_2_cluster: before_rollback(): Assertion `0' failed
 galera_gtid_2_cluster : MDEV-32633 galera_gtid_2_cluster: Assertion `thd->wsrep_next_trx_id() != (0x7fffffffffffffffLL * 2ULL + 1)'
-galera_vote_rejoin_mysqldump : MDEV-24481: galera_3nodes.galera_vote_rejoin_mysqldump MTR failed: mysql_shutdown failed
 galera_ssl_reload : MDEV-32778 galera_ssl_reload failed with warning message
 galera_ipv6_mariabackup : temporarily disabled at the request of Codership
 galera_pc_bootstrap : temporarily disabled at the request of Codership

mysql-test/suite/galera_3nodes/r/galera_vote_rejoin_mysqldump.result

@@ -39,6 +39,9 @@ SELECT VARIABLE_VALUE AS expect_Disconnected FROM INFORMATION_SCHEMA.GLOBAL_STAT
 expect_Disconnected
 Disconnected
 SET SESSION wsrep_on=ON;
+SELECT VARIABLE_VALUE AS expect_3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
+expect_3
+3
 SELECT VARIABLE_VALUE AS expect_Primary FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 expect_Primary
 Primary
@@ -49,17 +52,11 @@ t1	CREATE TABLE `t1` (
   `f1` int(11) DEFAULT NULL
 ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 connection node_2;
-SET SESSION wsrep_on=OFF;
-SET SESSION wsrep_on=ON;
-# restart
 SHOW CREATE TABLE t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `f1` int(11) DEFAULT NULL
 ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
-SELECT COUNT(*) AS expect_0 FROM t1;
-expect_0
-0
 CALL mtr.add_suppression("is inconsistent with group");
 connection node_3;
 SHOW CREATE TABLE t1;
@@ -81,3 +78,6 @@ CALL mtr.add_suppression("Can't open and lock privilege tables");
 CALL mtr.add_suppression("Info table is not ready to be used");
 CALL mtr.add_suppression("Native table .* has the wrong structure");
 CALL mtr.add_suppression("Table \'mysql.gtid_slave_pos\' doesn\'t exist");
+connection node_2;
+# restart
+connection node_1;

mysql-test/suite/galera_3nodes/t/galera_vote_rejoin_mysqldump.test

@@ -59,6 +59,7 @@ SET SESSION wsrep_on=ON;
 --let $wait_condition = SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
 --source include/wait_condition.inc
 
+SELECT VARIABLE_VALUE AS expect_3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
 SELECT VARIABLE_VALUE AS expect_Primary FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 
 # Confirm that the table is now identical throughout
@@ -67,18 +68,7 @@ SELECT VARIABLE_VALUE AS expect_Primary FROM INFORMATION_SCHEMA.GLOBAL_STATUS WH
 SHOW CREATE TABLE t1;
 
 --connection node_2
-SET SESSION wsrep_on=OFF;
---let $wait_condition = SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
---source include/wait_condition.inc
---source include/galera_wait_ready.inc
-SET SESSION wsrep_on=ON;
-
-# restart node so we don't fail on WSREP_START_POSITION internal check
---source include/restart_mysqld.inc
---source include/wait_until_connected_again.inc
-
 SHOW CREATE TABLE t1;
-SELECT COUNT(*) AS expect_0 FROM t1;
 CALL mtr.add_suppression("is inconsistent with group");
 
 --connection node_3
@@ -89,5 +79,14 @@ CALL mtr.add_suppression("Slave SQL: Error 'Can't DROP 'PRIMARY'; check that col
 --connection node_1
 --source suite/galera/include/galera_sst_restore.inc
 
+--connection node_2
+# restart node so we don't fail on WSREP_START_POSITION internal check
+--source include/restart_mysqld.inc
+--source include/wait_until_connected_again.inc
+
+--connection node_1
+--let $wait_condition = SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
+--source include/wait_condition.inc
+
 # Restore original auto_increment_offset values.
 --source ../galera/include/auto_increment_offset_restore.inc