If there are three armies - home, allied and enemy - in a province, do 'home' armies get a bigger share of foraging supplies than allies? Do home and/or allied armies get a bigger share than enemy armies? Does the army that was there first get a bigger share? Or are the supplies gained from foraging simply evenly distributed beween all armies in a province depending on army size, regardless of who controls the territory?
I have no idea, so you can (a) hope ericbabe responds to this thread or (b) try to figure it out and let us all know what you find [or preferably both]