Xorg version 1.14.4 with nouveau version 1.0.9

This has been happening for over a year with all versions of Xorf and nouveau
that I've used. When the mouse cursor becomes a grabbing hand, the framebuffer
box that is displayed around the hand is the wrong framebuffer. It displays the
xscreensaver's framebuffer.

In case I am using incorrect terminology, assume this scenario:
 1) My xscreensaver is set to show a picture of a cat hanging from a branch.
 2) I logged in from the screensaver and I go to Google Maps.
 3) I move my mouse over the map and the cursor changes from an arrow to a
grabbing hand.

What I see is a box around the grabbing hand that shows the cat instead of the
map. As I move the mouse around, the box moves with it (always around the
cursor and always showing the picture of the cat).

This does not happen if I use the nvidia driver. This has been a bug in Fedora
17, 18, 19, and now 20 - indicating how many versions of Xorg and nouveau have
had this problem.

Please let me know if this is a duplicate. I have searched for years, but I am
certain that I simply cannot stumble upon the correct terminology required to
find a mention of this bug.