[Bug 23158] New: Enhance appdb search filters to allow searching for regressions

http://bugs.winehq.org/show_bug.cgi?id=23158

Summary: Enhance appdb search filters to allow searching for
                    regressions
           Product: WineHQ Apps Database
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: appdb-unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Is there an easy way to search for regressions in the appdb?  
The current search filters don't seem to do the trick - but with a small
change, they could.
Right now you can have multiple filters active, e.g.

Active filters
Rating  = platinum
Rating  = garbage
Wine version < 1.0.1
Wine version  > 1.2rc1

but the combination doesn't seem well defined.  If rating & wine version
were grouped, e.g.

Active filters
Rating  = platinum  and Wine version < 1.0.1
Rating  = garbage  and Wine version  > 1.2rc1

that would do fine.  Or is there a better way?