MDEV-13549: Galera test failures

Fix test case MW-44 by disabling Galera replication of MyISAM
tables (mysql.general_log especially) to avoid MDL lock
wait later.

mysql-test/suite/galera/disabled.def

@@ -26,7 +26,6 @@ galera_gcache_recover_manytrx : MDEV-13549 Galera test failures
 galera_ist_mysqldump : MDEV-13549 Galera test failures
 galera_ssl_upgrade : MDEV-13549 Galera test failures
 galera_var_auto_inc_control_on : MDEV-13549 Galera test failures
-MW-44 : MDEV-13549 Galera test failures
 galera_var_retry_autocommit : MDEV-13549 Galera test failures
 pxc-421 : MDEV-13549 Galera test failures
 lp1376747-2 : MDEV-13549 Galera test failures

mysql-test/suite/galera/r/MW-44.result

+SET @@global.wsrep_replicate_myisam=OFF;
 TRUNCATE TABLE mysql.general_log;
+SELECT COUNT(*) from mysql.general_log;
+COUNT(*)
+1
 TRUNCATE TABLE mysql.general_log;
+SELECT COUNT(*) from mysql.general_log;
+COUNT(*)
+1
+SELECT COUNT(*) from mysql.general_log;
+COUNT(*)
+1
 SET SESSION wsrep_osu_method=TOI;
 CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
 SET SESSION wsrep_osu_method=RSU;
@@ -12,3 +22,4 @@ SELECT COUNT(*) = 0 FROM mysql.general_log WHERE argument NOT LIKE 'SELECT%';
 COUNT(*) = 0
 1
 DROP TABLE t1;
+SET @@global.wsrep_replicate_myisam=Default;

mysql-test/suite/galera/t/MW-44.test

@@ -5,13 +5,17 @@
 --source include/galera_cluster.inc
 --source include/have_innodb.inc
 
+SET @@global.wsrep_replicate_myisam=OFF;
 --connection node_1
 TRUNCATE TABLE mysql.general_log;
+SELECT COUNT(*) from mysql.general_log;
 
 --connection node_2
 TRUNCATE TABLE mysql.general_log;
+SELECT COUNT(*) from mysql.general_log;
 
 --connection node_1
+SELECT COUNT(*) from mysql.general_log;
 SET SESSION wsrep_osu_method=TOI;
 CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
 SET SESSION wsrep_osu_method=RSU;
@@ -23,3 +27,4 @@ SELECT COUNT(*) = 2 FROM mysql.general_log WHERE argument LIKE 'CREATE%' OR argu
 --connection node_2
 SELECT COUNT(*) = 0 FROM mysql.general_log WHERE argument NOT LIKE 'SELECT%';
 DROP TABLE t1;
+SET @@global.wsrep_replicate_myisam=Default;