Description of problem:
adding a new wallpaper via firefox works only one time. if try the same
proceduere again it will not refresh the current desktop wallpaper properly.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.open firefox and go to art.gnome.org (wallpaper section.
2.pick a wallpaper you like and open the picture
3.right click on the picture and choose "make this picture my desktop wallpaper"
4.watch the wallpaper be changed
5.choose a second wallpaper and open the picture
6.install it with rightclicking on the picture
the wallpaper doesent get changed anymore
proper setting of the newly chosen wallpaper
if you choose a new one from the background properties you can add one again.
I think it would be nicer if firefox picked a different name every time,
like Firefox_wallpaper_<n>.png, so that you can collect multiple wallpaper.
On the other hand, it might be nice if nautilus just reloaded the background
image without checking for the filename to be different. Looking into this
Will be fixed in rawhide soon. (needs to wait for a nautilus rebuild)