$ git clone -n https://src.fedoraproject.org/rpms/rust-ruzstd.git /var/lib/mock/f40-build-2568435-62223/root/chroot_tmpdir/scmroot/rust-ruzstd
Cloning into '/var/lib/mock/f40-build-2568435-62223/root/chroot_tmpdir/scmroot/rust-ruzstd'...
$ git fetch origin be14f2e39a851b0c558b98aac92e0407d11c5afb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ruzstd
 * [new ref]         be14f2e39a851b0c558b98aac92e0407d11c5afb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be14f2e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild