$ git clone -n https://src.fedoraproject.org/rpms/mesa.git /var/lib/mock/f40-build-787480-134780/root/chroot_tmpdir/scmroot/mesa
Cloning into '/var/lib/mock/f40-build-787480-134780/root/chroot_tmpdir/scmroot/mesa'...
$ git fetch origin c4f549cdb190bfae296e395218188401520db476:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mesa
 * [new ref]         c4f549cdb190bfae296e395218188401520db476 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4f549c Add a modprobe config file to enable GSP on Turing and Ampere with NVK