When test is ended then threads exit without completing the scenario

**PerfMatrix** ([Bug 62370](https://bz.apache.org/bugzilla//show_bug.cgi?id=62370&redirect=false)):
When running JMeter test for a specific duration, once the duration is ended, then the threads are being terminated without completing the scenario (iteration).

Ideally, threads should wait till they complete the scenario (iteration) and then exit or stop.

Due to such issue, there is a difference in transaction count like if login sample count is 200 then log out sample count could be 195 (or anything less than 200).

OS: All