JENKINS-22016 seems to be back again. We just tried upgrading to TAP-2.1, and matrix results are no longer collated.
Very easy to reproduce:
- Make a matrix job which scans a *.tap file
- Run it (twice, so the test history graph shows up)
- The "Test history" graph shows 0 tests run
- The "TAP Extended Results" window shows 0 tests run