$ git clone -n https://src.fedoraproject.org/rpms/rust-wu-diff.git /var/lib/mock/f40-build-2177023-51090/root/chroot_tmpdir/scmroot/rust-wu-diff
Cloning into '/var/lib/mock/f40-build-2177023-51090/root/chroot_tmpdir/scmroot/rust-wu-diff'...
$ git fetch origin ae6559b56b0f23c93bc8e556bf6cb8b1df461ad1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wu-diff
 * [new ref]         ae6559b56b0f23c93bc8e556bf6cb8b1df461ad1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae6559b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild