$ git clone -n https://src.fedoraproject.org/rpms/mlt.git /var/lib/mock/f42-build-3403722-45135/root/chroot_tmpdir/scmroot/mlt
Cloning into '/var/lib/mock/f42-build-3403722-45135/root/chroot_tmpdir/scmroot/mlt'...
$ git fetch origin 7599643497d6663f268095172e3b28f78c4b1a1f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mlt
 * [new ref]         7599643497d6663f268095172e3b28f78c4b1a1f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7599643 Update to 7.30.0 upstream release