Freak Backlit Error in blender 2.5 (render25)

Hi All,

I found that in a horizontal plane the lit faces are flipped:

Wrong (render25 latest build):
http://img69.imageshack.us/img69/518/errorbacklitplane.th.jpg

Right (rendered with trunk 25):

http://img412.imageshack.us/img412/1426/noerrorbacklitplane.th.jpg

As you can see the horizontal planes have their lit faces flipped, and, more freakishly, the vertical plane remains intact.

Apparently, this only happens in the 64 bit builds of the render25 branch, at win xp 64 at least.

I submitted a bugreport in the 2.5 tracker as there is no branch render25 bugtracker that I know of ( I might be poorly informed though)

Don’t think they want bug reports for the render branch…

Wasn’t this fixed by Brecht recently?
http://lists.blender.org/pipermail/bf-blender-cvs/2010-June/028720.html