$ git clone -n https://src.fedoraproject.org/rpms/python-nkdfu.git /var/lib/mock/f45-build-31718-655/root/chroot_tmpdir/scmroot/python-nkdfu
Cloning into '/var/lib/mock/f45-build-31718-655/root/chroot_tmpdir/scmroot/python-nkdfu'...
$ git fetch origin e5fa8b876430c4390b6b20c7a9748ae4bf2bf805:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nkdfu
 * [new ref]         e5fa8b876430c4390b6b20c7a9748ae4bf2bf805 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5fa8b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild