Rather than just one level of component selection, have a multi-level component heirarchy. As components become more feature rich, bugs need to be more specific, and target a sub-component. A 2 tier system would be acceptable, but more would be nice. ie: rather than just 'Bugzilla', perhaps have 'Bugzilla/UI/query'. admittedly, you could just structure one's component list approriatly, eg: Bugzilla_UI_query Bugzilla_UI_new etc... But this would make the component list very long and difficult to navigate.
*** This bug has been marked as a duplicate of 43940 ***
moving to Bugzilla product reassign to default owner/qa for INVALID/WONTFIX/WORKSFORME/DUPLICATE