I just conquered a city and the game gave me ownership of it, but my army is not occupying the city - it is standing in the spot it was before battle.  Now I'm going to have to conquer it again next turn because there are 3 enemy stacks outside the city walls.

Stardock, please, please remove the lunacy of combat ending a stacks entire turn.  I'm more than OK with a 1 combat per turn limit for my armies, but don't end the armies turn if there are movement points left.  Also, if I defeat the last defender in a square I should take the square.  This mechanic already exists for what it supposed to happen when I take a city.