So i'm about done sanding and getting ready to do filler work. Here comes dumb newbie question number 1:

On the rear fenders, top of the wheel well, there are two rivets attaching an underside fender brace. It looks like it is factory correct. Do I filler these so they are hidden?...every image i can find doesn't show these two rivets, so i am assuming so, but just want to make sure.

thanks in advance - mark