$ git clone -n https://src.fedoraproject.org/rpms/python-dkimpy.git /var/lib/mock/f45-build-30432-644/root/chroot_tmpdir/scmroot/python-dkimpy
Cloning into '/var/lib/mock/f45-build-30432-644/root/chroot_tmpdir/scmroot/python-dkimpy'...
$ git fetch origin c5d5b088ea7dc088f46818f5c18882e6b1ba6c41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-dkimpy
 * [new ref]         c5d5b088ea7dc088f46818f5c18882e6b1ba6c41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5d5b08 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild