Something has certainly changed as far as ZDoom is concerned right enough. I don't get the glitch with the official version but I too get it with the SVN build.
As an aside, interestingly on the hardware renderer side of things, Graham Jackson has obviously done a bit of dark magic to get this to work in Risen3D...
I know that Graham spent a bit of time trying to get SiD working well. I haven't checked out the other potentially problematic areas recently though.
It's also interesting that the glitch seen in GZDoom looks very similar to the one that has appeared in ZDoom.