Steps to reproduce

Stash Repository Triggers the build

1. Create a plan linked to a Stash repository
2. Add a sleep 60 task
3. Use Stash Repository Triggers the build trigger
4. Commit a change to Stash to trigger a build
5. When the build start, push another commit

Observations

The second build is not triggered as governed by the concurrent build rule

Repository triggers the builds

1. Create a plan linked to a Stash repository
2. Add a sleep 60 task
3. Use Repository triggers the builds trigger
4. Commit a change to Stash to trigger a build
5. When the build start, push another commit

Observations

The second build is triggered which does not follow the concurrent build rule

This behavior seems to be a fix for BAM-15449. However, I suspect this isn't an expected behavior as the 2nd build gets built without entering the build queue