Repro steps:

1. In a build job that contains tests, selecte the options listed in attached screen shot;

1. Run the job and watch the slack messages sent

Result: Two slack messages are sent, one with the build and test results combined, and one with the commit list with authors and titles

Expected: One message containing all info

Rationale: Since the test summary is merged into the first message, one would expect the commit list to behave in the same way.