Fix for some failing tests.

mysql-test/t/innodb_load_xa_with_wsrep.test

@@ -0,0 +1,19 @@
+#
+# MDEV-6082 Assertion `0' fails in TC_LOG_DUMMY::log_and_order on DML after installing TokuDB at runtime on server with disabled InnoDB
+#
+--source include/not_embedded.inc
+--source include/have_wsrep.inc
+
+if (!$HA_INNODB_SO) {
+  --skip Need InnoDB plugin
+}
+install plugin innodb soname 'ha_innodb';
+select engine,support,transactions,xa from information_schema.engines where engine='innodb';
+create table t1 (a int) engine=innodb;
+start transaction;
+insert t1 values (1);
+insert t1 values (2);
+commit;
+--source include/show_binlog_events.inc
+drop table t1;
+uninstall plugin innodb;