$ git clone -n https://src.fedoraproject.org/rpms/python-vdf.git /var/lib/mock/f45-build-33602-671/root/chroot_tmpdir/scmroot/python-vdf
Cloning into '/var/lib/mock/f45-build-33602-671/root/chroot_tmpdir/scmroot/python-vdf'...
$ git fetch origin 217f8cbaf53dd975c14480105345e5ff684dd5b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-vdf
 * [new ref]         217f8cbaf53dd975c14480105345e5ff684dd5b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 217f8cb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild