pr-13222-08f6f1 vs. 2412-31 / ogl-lin-mesa / lesson08

pr-13222-08f6f1 (08f6f1d4) Diff 2412-31 (ada646a7)
Failure b5942aaef61ec4b5ca146f0b97a20f77b635dd9d
Failure 58073d6845ba15f2080ddaa2d1112201b2f5d5eb
Failure ae85a32595e6e1ab9e34491837df96446e79ea44