$ git clone -n https://src.fedoraproject.org/rpms/python-google-cloud-testutils.git /var/lib/mock/f45-build-30870-648/root/chroot_tmpdir/scmroot/python-google-cloud-testutils
Cloning into '/var/lib/mock/f45-build-30870-648/root/chroot_tmpdir/scmroot/python-google-cloud-testutils'...
$ git fetch origin 9a7bced9addf9fde6330e2d46d511d3ef1626580:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-google-cloud-testutils
 * [new ref]         9a7bced9addf9fde6330e2d46d511d3ef1626580 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a7bced Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild