Code review comment for lp:~gary-lasker/software-center/recommender-test-fix

I have seen this test failure myself for a while now, for me it happens about one out of 10 runs, and I just haven't had the chance to investigate it. Indeed, it is completely unrelated to anything in this branch. It seems like just a race issue in the test as I personally have not seen problems in this area in the real code.