[Plugin: Polylang] Wrong redirect after posting a comment

When I post a comment at article /en/article/#comment-1, comment is saved and I am redirected to /article/#comment-1, what is 404.

I’ve made a small workaround in polylang.php and it’s now working for me:

# in function __construct()
add_filter('get_comment_link', array(&$this, 'pl_get_comment_link'), 10, 2);

function pl_get_comment_link($val, $args) {
    global $polylang;
    $post_id = $args->comment_post_ID;
    $lang = $polylang->get_post_language($post_id);
    $lang_slug = $lang->slug;
    $url = preg_replace("#^(.+://[^/]+)/(.+)$#", "$1/".$lang_slug."/$2", $val);
    return $url;
}

But it is not a complex solution, because it’s only working with rewrites.