$ git clone -n https://src.fedoraproject.org/rpms/mlt.git /var/lib/mock/f40-build-802700-144067/root/chroot_tmpdir/scmroot/mlt
Cloning into '/var/lib/mock/f40-build-802700-144067/root/chroot_tmpdir/scmroot/mlt'...
$ git fetch origin 64e0df2328858bf7a84e2991354e57df3baefb28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mlt
 * [new ref]         64e0df2328858bf7a84e2991354e57df3baefb28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64e0df2 Remove workaround