$ git clone -n https://src.fedoraproject.org/rpms/variety.git /var/lib/mock/f39-build-1558364-37304/root/chroot_tmpdir/scmroot/variety
Cloning into '/var/lib/mock/f39-build-1558364-37304/root/chroot_tmpdir/scmroot/variety'...
$ git fetch origin 781d9744b7d5d48a5e4eabc569120f3fdce94f2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/variety
 * [new ref]         781d9744b7d5d48a5e4eabc569120f3fdce94f2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 781d974 Update to 0.8.11