$ git clone -n https://src.fedoraproject.org/rpms/octave-image.git /var/lib/mock/f40-build-789699-135960/root/chroot_tmpdir/scmroot/octave-image
Cloning into '/var/lib/mock/f40-build-789699-135960/root/chroot_tmpdir/scmroot/octave-image'...
$ git fetch origin 64e561a6c2049be789bb79bebbb0f8307828556e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-image
 * [new ref]         64e561a6c2049be789bb79bebbb0f8307828556e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64e561a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild