$ git clone -n https://src.fedoraproject.org/rpms/python-param.git /var/lib/mock/f40-build-2203885-51939/root/chroot_tmpdir/scmroot/python-param
Cloning into '/var/lib/mock/f40-build-2203885-51939/root/chroot_tmpdir/scmroot/python-param'...
$ git fetch origin 2eb60307a784cd509f76501df08a9e585f872dd1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-param
 * [new ref]         2eb60307a784cd509f76501df08a9e585f872dd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2eb6030 Assert that %pyproject_files contains a license file