$ git clone -n https://src.fedoraproject.org/rpms/python-setuptools_scm.git /var/lib/mock/f40-build-2232010-53316/root/chroot_tmpdir/scmroot/python-setuptools_scm
Cloning into '/var/lib/mock/f40-build-2232010-53316/root/chroot_tmpdir/scmroot/python-setuptools_scm'...
$ git fetch origin 4a29e6f882cca49f69e6c2db78425bdcd9fbda3d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-setuptools_scm
 * [new ref]         4a29e6f882cca49f69e6c2db78425bdcd9fbda3d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a29e6f Update to 8.0.4