Generally there are no card driver (like -ati) packages in the xorg-edgers PPA (only for -intel because it is so... special). Test packages for -ati are in my own PPA. However I don't think there is anything that should have fixed this bug at this point. I asked specifically for testing of one version in comment 20 and although no one answered here I think Jeff tested it (with negative result) in the upstream report.
Generally there are no card driver (like -ati) packages in the xorg-edgers PPA (only for -intel because it is so... special). Test packages for -ati are in my own PPA. However I don't think there is anything that should have fixed this bug at this point. I asked specifically for testing of one version in comment 20 and although no one answered here I think Jeff tested it (with negative result) in the upstream report.