From: https://bugzilla.mozilla.org/show_bug.cgi?id=1281366#c4 "hmm, I don't see the alternate fixing from bug 1273255 being hit at all, either in my debugger or when I add printfs. I could be doing something wrong, of course - but I think mozregression is misleading us. The two last revisions from the output point to: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=f66a5b9d&tochange=bc6334ae which doesn't just include bug 1273255 but also bug 1267989 and bug 1273661 and bug 909633. Boris, any chance one of those broke this site instead? (I mean, I guess not the microdata removal, but the other ones...) :wlach, can we make mozregression not output bug numbers when there's 1 push with multiple bugs (and so it's really not sure which one caused an issue) ?" bc: Would you be able to look into this one as well when you have the chance?

FWIW a list of possible bugs is probably more useful than no bugs output.