[SUGGESTION] Treasure should not be obtained before battle if guarded

So in this new game I started there were several 'treasures' on the map that were guarded by monsters. On each and every time I got the treasure upon entering the tile and then I got the combat box. I could therefore move out of combat while taking the treasure with me.

I think I should not ever get the treasure unless I defeat the guardian. Maybe this is a bug, I do not know, but since it happens every time with me I suppose it is not.