I discovered the hard way that the default Gentoo Bugzilla search only looks in "NEW," "ASSIGNED," and "REOPENED." I believe it would be more intuitive if it looked in all stati, at least "RESOLVED." I was the third person to submit a duplicate bug report to #7803. The only reason I submitted a report was because I failed to find the original. When I noticed that I hadn't been searching the "RESOLVED" reports, I found the original easily.
This is finially fixed ;-) //ZhEN
The search seems too restricted again. For example, when searching for existing bugs before entering a new one, the search returns only UNCONFIRMED, NEW, ASSIGNED, and REOPENED bugs. Having the search return resolved bugs would probably cut down on duplicates like with bug 23276.