$ git clone -n https://src.fedoraproject.org/rpms/octave-quaternion.git /var/lib/mock/f40-build-2299190-56600/root/chroot_tmpdir/scmroot/octave-quaternion
Cloning into '/var/lib/mock/f40-build-2299190-56600/root/chroot_tmpdir/scmroot/octave-quaternion'...
$ git fetch origin cb79f14e8ce32fd1c50648d8ec9cf4beb230e468:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/octave-quaternion
 * [new ref]         cb79f14e8ce32fd1c50648d8ec9cf4beb230e468 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb79f14 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild