Comment 1 for bug 993044

Packages are not allowed to overwrite each other unless they explicitly request it. E.g. our "slingshot-launcher" package doesn't conflict with "slingshot" from Ubuntu repos because "slingshot" is a game and it's installed in /usr/games/.

Well, somebody following your logic made slingshots conflict on packaging level, but I've fixed that yesterday and the fix will land to the PPA in an hour or so. I'll check if there are any file collisions (e.g. in .desktop files) and fix them if I encounter any.