What happens if I add a beatmap that I've already downloaded in the game? I mean duplicated maps. Will the game delete it automatically, or leave a copy? I am trying to download a 90GB mania pack and currently I have 4000+ beatmaps in the game, so I am expecting a lot of duplicated maps. I'm just curious whether I'll have to go to the songs folder and delete all the duplicated maps manually (Since it's a waste of space not deleting all those duplicates)