$ git clone -n https://src.fedoraproject.org/rpms/python-cvdupdate.git /var/lib/mock/f45-build-30184-643/root/chroot_tmpdir/scmroot/python-cvdupdate
Cloning into '/var/lib/mock/f45-build-30184-643/root/chroot_tmpdir/scmroot/python-cvdupdate'...
$ git fetch origin 9364b383438e391d73ab97a4f555617294de9eb3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cvdupdate
 * [new ref]         9364b383438e391d73ab97a4f555617294de9eb3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9364b38 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild