Indeed. And this time, I guess, it was harder to find the cause of the issue, since it only affects cards that don't support trapezoid acceleration, and I guess they do most of the tests on newer cards that support it
Also, it should be noted that all the problems on Debian are happening on Sid, which should be expected to break every now and then since it's the unstable branch... I'm not sure about other distros, but the situation, at least for me, doesn't look as bad as some people say
...I kind of miss Sun definition of 'unstable'