Disappearing xen guest subscriptions on 2008-10-22

I have a very simple RHN account with three systems. One of those is a
xen host with two guests. On 10-22 it appears that Red Hat removed the
base and child channel subscriptions from one of those guests. The
unsubscribe events are logged in the event history for that machine.
The only difference between these two guests is that the one that had
its subscriptions removed was turned off at the time of the event
while the one that was left unchanged was running at the time.

Any chance someone could comment on what is going on with RHN?

John