// According to [1], in the section on `ls-refs`, we must still filter on

    // this side, since `ref-prefix` is simply an optimization.

    //

    // [1]: https://mirrors.edge.kernel.org/pub/software/scm/git/docs/gitprotocol-v2.html

    let refs = refs

        .into_iter()

        .filter(|r| {

            let (refname, _, _) = r.unpack();

            config

                .prefixes

                .iter()

                .any(|prefix| refname.starts_with(prefix))

        })

        .collect();