So it turns out after fixing the typo in the .launchpad.yaml (thanks again for finding that cjwatson) the parallel jobs did execute as expected - see https://code.launchpad.net/~alexmurray/qa-regression-testing/+git/qa-regression-testing/+build/21636 for an example. So I think this can be closed?
So it turns out after fixing the typo in the .launchpad.yaml (thanks again for finding that cjwatson) the parallel jobs did execute as expected - see https:/ /code.launchpad .net/~alexmurra y/qa-regression -testing/ +git/qa- regression- testing/ +build/ 21636 for an example. So I think this can be closed?