[RHN Satellite 5.4] Satellite flex guest entitlement issue for child channels

Issue

• if I manually unsubscribe/resubscribe the system to the "Network Tools" child channel via the UI - I get the error "No available subscriptions"
• if all of the "regular" entitlements for a child channel are consumed, then you will see "0 available" for that channel on the virtual guest's system profile, and attempts to subscribe the system to the channel will fail