$ git clone -n https://src.fedoraproject.org/rpms/discount.git /var/lib/mock/f40-build-2207622-52086/root/chroot_tmpdir/scmroot/discount
Cloning into '/var/lib/mock/f40-build-2207622-52086/root/chroot_tmpdir/scmroot/discount'...
$ git fetch origin 8ae3328d52a9a1e39717fc8b748b308f4fbe30ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/discount
 * [new ref]         8ae3328d52a9a1e39717fc8b748b308f4fbe30ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ae3328 Include more manpages