$ git clone -n https://src.fedoraproject.org/rpms/libva-intel-hybrid-driver.git /var/lib/mock/f38-build-side-42-init-devel-851458-28425/root/chroot_tmpdir/scmroot/libva-intel-hybrid-driver
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-851458-28425/root/chroot_tmpdir/scmroot/libva-intel-hybrid-driver'...
$ git fetch origin f356b628c675da2acb10f3234242fb42b83f8cb2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libva-intel-hybrid-driver
 * [new ref]         f356b628c675da2acb10f3234242fb42b83f8cb2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f356b62 Rebuilt