[Nouveau] OpenArena artifacts since version bump to 1.1.1

[Sergei Antonov]

Hello!
I'm using NVIDIA GeForce GT 640M. And beginning with this commit:

    commit 142c21b8d493318551932eee2e9d98ff14b473da
    Author: Christoph Bumiller <e0425955 at student.tuwien.ac.at>
    Date:   Wed Mar 27 22:25:52 2013 +0100
    drm/nouveau/drm: bump the driver version to 1.1.1 to report new features

till the latest kernel 3.15-rc5 OpenArena game looks like this:
  http://s3.postimg.org/wif3fbcvn/image.jpg
  http://s27.postimg.org/md9olgr8z/image.jpg

Is it a known bug? What can I do to fix it?

Using Mesa version 10.0.3.