Today I hard-deleted a media and because I wanted to be sure that the media in fact got hard-deleted (and also because I know that everything coded by Chris always comes with surprises ) I accessed it manually by entering the URL in the address bar and got the following error message: "You do not have permission to view this page or perform this action."
That message seems to indicate a problem because if the media got hard-deleted I should get something like "Media doesn't exists".
If I logout from my admin account and try to access the hard-deleted media via direct URL as a guest I get the correct error message: "The requested page could not be found." but...
...interestingly after a few minutes still as a guest if I try to access to the hard-deleted media now I'm asked to login and if I login (be it as a regular member or as admin) I get: "You do not have permission to view this page or perform this action."