Now, 7.9.0~git20100416+gallium+r300.f91a06ee-0ubuntu0tormod does not have the fix, but 7.9.0~git20100418+gallium+r300.0490116f-0ubuntu0tormod will have the fix to test. If you don't see these versions in the PPA, choose "Any status" in the search filter.
Now, 7.9.0~git201004 16+gallium+ r300.f91a06ee- 0ubuntu0tormod does not have the fix, but 7.9.0~git201004 18+gallium+ r300.0490116f- 0ubuntu0tormod will have the fix to test. If you don't see these versions in the PPA, choose "Any status" in the search filter.