I doubt this is the solution we're looking for. To expose caching changes to WQL, we'd actually have to put something in the database about them. And, in any event, changing an inclusion doesn't change the cache. Recommend closing this ticket, though it may be worth recording the underlying need elsewhere.
Handled by update includer timestamps when includee edited, yes?
--John Abbe.....Sun Dec 14 20:43:12 -0800 2008
--Ethan McCutchen.....Sun Mar 08 23:28:06 -0700 2009