I don't think that it's a good idea to mark this bug as "fix committed" just because it is fixed in a mainline kernel. Mainline kernels are for trying things out and this "fix" will not propagate into normal 12.04 updates, so will not fix the problem for the majority of users. Even if you do use this kernel, you will not get any kernel security updates from the supported 12.04 kernel (currently 3.2.0-24).
I don't think that it's a good idea to mark this bug as "fix committed" just because it is fixed in a mainline kernel. Mainline kernels are for trying things out and this "fix" will not propagate into normal 12.04 updates, so will not fix the problem for the majority of users. Even if you do use this kernel, you will not get any kernel security updates from the supported 12.04 kernel (currently 3.2.0-24).