$ git clone -n https://src.fedoraproject.org/rpms/python-mirrors-countme.git /var/lib/mock/f41-build-side-1-2911013-34774/root/chroot_tmpdir/scmroot/python-mirrors-countme
Cloning into '/var/lib/mock/f41-build-side-1-2911013-34774/root/chroot_tmpdir/scmroot/python-mirrors-countme'...
$ git fetch origin fc2ac0da7091784c7e9d7b59de8171eb7fcb6f27:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mirrors-countme
 * [new ref]         fc2ac0da7091784c7e9d7b59de8171eb7fcb6f27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc2ac0d convert GPLv3+ license to SPDX