2012-11-23 20:04 AEST by Arthur Barrett - Currently you can 'require bug number' or not.

But some customers may require a bug number only on a branch, or only on 'reserved' files (kx).

This is also somewhat related to bug 6873

2012-11-24 05:52 AEST by Glen Starrett - Would make sense to implement this as an additional keyword that would be added.
 E.g. -kbxr for "Binary, Exclusive, Require bug".