$ git clone -n https://src.fedoraproject.org/rpms/shorewall.git /var/lib/mock/f45-build-35927-700/root/chroot_tmpdir/scmroot/shorewall
Cloning into '/var/lib/mock/f45-build-35927-700/root/chroot_tmpdir/scmroot/shorewall'...
$ git fetch origin 42f0574a3f8d65e15700a8f66b17edd722e54609:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/shorewall
 * [new ref]         42f0574a3f8d65e15700a8f66b17edd722e54609 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 42f0574 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild