$ git clone -n https://src.fedoraproject.org/rpms/rust-rd-util.git /var/lib/mock/f40-build-2556135-62037/root/chroot_tmpdir/scmroot/rust-rd-util
Cloning into '/var/lib/mock/f40-build-2556135-62037/root/chroot_tmpdir/scmroot/rust-rd-util'...
$ git fetch origin 1fb6e0744e0e48c056848f970bbd15d50c5a6804:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rd-util
 * [new ref]         1fb6e0744e0e48c056848f970bbd15d50c5a6804 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fb6e07 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild