$ git clone -n https://src.fedoraproject.org/rpms/rust-keccak.git /var/lib/mock/f40-build-2652927-66896/root/chroot_tmpdir/scmroot/rust-keccak
Cloning into '/var/lib/mock/f40-build-2652927-66896/root/chroot_tmpdir/scmroot/rust-keccak'...
$ git fetch origin a21168608ad039b73c1fb008e0392bca0812b45d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-keccak
 * [new ref]         a21168608ad039b73c1fb008e0392bca0812b45d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a211686 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild