The worse thing is, for some odd reason, sometimes when you have won the battle as the enemy are fleeing and you can tab and quit the battle, some enemy units will stop fleeing and actually attack again and your men just stand there cheering whilst getting hit and will get killed.
I've seen this happen a few times in 1.6.4.
Although I strongly believe that fleeing enemies should stop running if they feel they have no chance of fleeing successfully, right now seeing my cheering units get killed is a bit wtf..