$ git clone -n https://src.fedoraproject.org/rpms/anaconda-liveinst.git /var/lib/mock/f40-build-2620141-64654/root/chroot_tmpdir/scmroot/anaconda-liveinst
Cloning into '/var/lib/mock/f40-build-2620141-64654/root/chroot_tmpdir/scmroot/anaconda-liveinst'...
$ git fetch origin fc416c261deea45607ed6e264034e145e5ffe949:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/anaconda-liveinst
 * [new ref]         fc416c261deea45607ed6e264034e145e5ffe949 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc416c2 This is an EPEL only package