$ git clone -n https://src.fedoraproject.org/rpms/kbilliards.git /var/lib/mock/f45-build-14638-462/root/chroot_tmpdir/scmroot/kbilliards
Cloning into '/var/lib/mock/f45-build-14638-462/root/chroot_tmpdir/scmroot/kbilliards'...
$ git fetch origin 002f5a73ec1a89cee2b157f329b0b528de9ef643:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kbilliards
 * [new ref]         002f5a73ec1a89cee2b157f329b0b528de9ef643 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 002f5a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild