$ git clone -n https://src.fedoraproject.org/rpms/R-cyclocomp.git /var/lib/mock/f40-build-2352312-60193/root/chroot_tmpdir/scmroot/R-cyclocomp
Cloning into '/var/lib/mock/f40-build-2352312-60193/root/chroot_tmpdir/scmroot/R-cyclocomp'...
$ git fetch origin 3a0b8fb79a0d7f65786442dd81beac64504e9689:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-cyclocomp
 * [new ref]         3a0b8fb79a0d7f65786442dd81beac64504e9689 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a0b8fb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild