$ git clone -n https://src.fedoraproject.org/rpms/slick-greeter.git /var/lib/mock/f40-build-2041918-48484/root/chroot_tmpdir/scmroot/slick-greeter
Cloning into '/var/lib/mock/f40-build-2041918-48484/root/chroot_tmpdir/scmroot/slick-greeter'...
$ git fetch origin 572fc936a8bc8dc2ac83543349e63bf686a7c5b9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/slick-greeter
 * [new ref]         572fc936a8bc8dc2ac83543349e63bf686a7c5b9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 572fc93 Update to 2.0.1 release