Search didn't turn up any hits on 'supply bug', so I'll assume that this is unreported. Then again, maybe it's by design... anyhow.
1) The effects of the endless bag of wine don't stack (seems like it should)
2) I have 5 commanders each with a endless bag of wine. Yet, the 'supplies' in the province they are in is reported as only 68, and my army is starving with a usage of only 127.
Having a great time with the game, btw... I wouldn't want my report to suggest otherwise
Now back to trying to stomp out the heathens.