$ git clone -n https://src.fedoraproject.org/rpms/python-cvss.git /var/lib/mock/f45-build-30185-643/root/chroot_tmpdir/scmroot/python-cvss
Cloning into '/var/lib/mock/f45-build-30185-643/root/chroot_tmpdir/scmroot/python-cvss'...
$ git fetch origin 2227d0d2a0913b5994913e0674ecc069cd669d28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cvss
 * [new ref]         2227d0d2a0913b5994913e0674ecc069cd669d28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2227d0d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild