$ git clone -n https://src.fedoraproject.org/rpms/librtas.git /var/lib/mock/f38-build-718585-96743/root/chroot_tmpdir/scmroot/librtas
Cloning into '/var/lib/mock/f38-build-718585-96743/root/chroot_tmpdir/scmroot/librtas'...
$ git fetch origin 856d75e4211328969b22b46c241acc949630fd7a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/librtas
 * [new ref]         856d75e4211328969b22b46c241acc949630fd7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 856d75e update to 2.0.4