$ git clone -n https://src.fedoraproject.org/rpms/python-cppy.git /var/lib/mock/f45-build-30139-643/root/chroot_tmpdir/scmroot/python-cppy
Cloning into '/var/lib/mock/f45-build-30139-643/root/chroot_tmpdir/scmroot/python-cppy'...
$ git fetch origin 28dbc392f5217ff73a951dc6ab39e5b07b6332f4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cppy
 * [new ref]         28dbc392f5217ff73a951dc6ab39e5b07b6332f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28dbc39 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild