$ git clone -n https://src.fedoraproject.org/rpms/rust-link-cplusplus.git /var/lib/mock/f40-build-2653006-66897/root/chroot_tmpdir/scmroot/rust-link-cplusplus
Cloning into '/var/lib/mock/f40-build-2653006-66897/root/chroot_tmpdir/scmroot/rust-link-cplusplus'...
$ git fetch origin bf37152eb546f33319368fa520579a5d227e0e01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-link-cplusplus
 * [new ref]         bf37152eb546f33319368fa520579a5d227e0e01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf37152 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild