$ git clone -n https://src.fedoraproject.org/rpms/jello.git /var/lib/mock/f40-build-2292036-56095/root/chroot_tmpdir/scmroot/jello
Cloning into '/var/lib/mock/f40-build-2292036-56095/root/chroot_tmpdir/scmroot/jello'...
$ git fetch origin d8c66b83b7f2a6fd28ce4bff66af8558ce505830:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jello
 * [new ref]         d8c66b83b7f2a6fd28ce4bff66af8558ce505830 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8c66b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild