Searching for RESOLVED bugs containing the word Q_SETUSE from the advanced search page does not find bug 102080. (Of course, a normal ALL search for Q_SETUSE finds nothing, but I think there are already open bug reports on that issue.) Perhaps this is mere ignorance on my part, but I've tried a number of variants on this search, all with zero hits. Perhaps this is a duplicate of an existing bugzilla bug report, but I've browsed through numerous plausible seeming matches in "resolved bugzilla" bug reports, and none seem to specifically deal with this issue.
If I search for A Comment contains all of the words/strings Q_SETUSE Status: RESOLVED the bug you mentioned shows up just fine. http://bugs.gentoo.org/buglist.cgi?query_format=advanced&short_desc_type=allwordssubstr&short_desc=&long_desc_type=allwordssubstr&long_desc=Q_SETUSE&bug_file_loc_type=allwordssubstr&bug_file_loc=&status_whiteboard_type=allwordssubstr&status_whiteboard=&keywords_type=allwords&keywords=&bug_status=RESOLVED&emailassigned_to1=1&emailreporter1=1&emailcc1=1&emailtype1=substring&email1=&emailassigned_to2=1&emailreporter2=1&emailcc2=1&emailtype2=substring&email2=&bugidtype=include&bug_id=&chfieldfrom=&chfieldto=Now&chfieldvalue=&cmdtype=doit&order=Reuse+same+sort+as+last+time&field0-0-0=noop&type0-0-0=noop&value0-0-0= Are you sure you searched for comments, and not only for summaries?
Works for me. http://tinyurl.com/l9yf8
Ok, it's working for me now. I'm fairly certain that this is an exact duplicate of a search that I tried earlier which did not find anything, but maybe I made a mistake earlier. There's a slight possiblity of a race condition relating to caching or some such, but there's a better chance I had just made a mistake.
Nevermind, closing then... Bugzilla is probably tired. :)