This wasn't happening in bugstest, at least for all the times I tried it. I'm no big html/css/whatever expert so I can't tell what's going wrong there, but something has to for sure. It might as well be an error in Konqueror's rendering, but it makes bugzy quite ugly :/ Reproducible: Always Steps to Reproduce:
Nevermind, seems like Shift-F5 (to clear the cache for the current page) was not enough, had to clear the whole disk cache and restart all the instances of Konqueror to clear out the cache, not sure why but not even that interested on that now :P