Description of problem: List of available flags is becoming longer over time and once we will add flags for z-streams (rhel-5.0.z, rhel-4.5.z, ...) it will clutter the interface and can confure users. It would help to hide mutually exclusive flags. The proposed solution: If one of rhel-x.y, rhel-x.y.z, or rhn-rhelx.y flags are set to "+", "-", or "?" hide other rhel-* or rhn-rhel* flags (if not set). These flags are mutually exclusive. When no of the mentioned flags are set, display all of them (current behavior). This operation cound be (probably) performed just on client side using JavaScript.
Red Hat Bugzilla is now using version 3.2 of the Bugzilla codebase and therefore this bug will need to be re-verified against the new release. With the updated code this bug may no longer be relevant or may have been fixed in the new code. Updating bug version to 3.2.
Red Hat Bugzilla 3.2 behaves as required. Closing this bz.