Trapper medal bugged

[Mandea]

You have to deliver the final blow. However, it also works on your own troops. So you can summon some troops and kill them with trap.... ; but I still don't like this medal. It makes the game sooooo long using trap to deliver the final blow. However it's worth getting it for a mage.

edit strange, my own troops don't count as trapped. maybe because of the new patch??