Merge pull request #1339 from laurynas-biveinis/bug1660243-5.6

Fix bug 1660243 (Test rpl.rpl_semi_sync_event is unstable)

Author: laurynas-biveinis

mysql-test/suite/rpl/t/rpl_semi_sync_event.test

@@ -98,6 +98,9 @@ disable_warnings;
 UNINSTALL PLUGIN rpl_semi_sync_slave;
 
 connection master;
+--let $status_var= Rpl_semi_sync_master_clients
+--let $status_var_value= 0
+--source include/wait_for_status_var.inc
 UNINSTALL PLUGIN rpl_semi_sync_master;
 enable_warnings;