This is correct (I've done it a few times). I think there's an edit window though and at 8 hours we're well outside that. The other option (e.g. when it's not

This is correct (I've done it a few times). I think there's an edit window though and at 8 hours we're well outside that. The other option (e.g. when it's not your submission) is to email the mods, which I've just done, and they will fix it up if appropriate.