In hindsight, it was really dumb to post this as a bug report; this isn't actually a bug since it's just a warning. What actually happened is that I was trying to report something else that I thought was a bug, then I found out that it wasn't a bug and tried to delete this thread, but there was no option to delete it, so I thought I should use this to say something might belong in this sub-forum. And so this thread was embarrassingly left here.