The test is getting failed after the recent changes. The change involved
 addition of mtr suppression which adds additional group of events in the
 binlog. The assertion  checks the number of events in binlog. The assertion
 didnt took into account the new mtr suppression. Hence the test assertion
 failed.

 Fix: There is a variable $not_xa_trans_committed in test which is used
 in assertion. The variable value is increased for every mtr suppression.
 Incremented the value of that variable before the new mtr suppression.