In a bug list in bugzilla.redhat.com, there is some magic (sorry, not a web developer :) ) that turns the the bug that your mouse is currently hovering over gray. If you click on a bug that is currently gray, and then you use the back button to return to the bug list, it remains gray.
Jon, could you elaborate please? It might be my poort English but I have no clue, how you mean I should reproduce it?
Sure - go to a bug list, notice the highlighting on the bug that your mouse is current over. Click on that bug, then click back to go back to the bug list. The highlighting will remain when it shouldn't. And your English is leaps and bounds better than my Czech :)
will take upstream to help/broken website (wherever that goes :) ).