I'm trying to set up routing so that I can use route segments in place of a query string, to allow things like this:

/news/{type}/{topic} - where topic is used to filter a search

It's much more user-friendly than news?topic=value or news?person=name

I've added the required route:

        routes.MapUmbracoRoute("NewsListRoute",
            "news/{type}/{filter}",
            new
            {
                controller = "News",
                action = "FilteredNews",
                filter = UrlParameter.Optional
            },
            new NewsListRouteHandler(),
            new {
                type = "^(about|featuring)$"
            });

and the handler:

    protected override IPublishedContent FindContent(RequestContext request, UmbracoContext context)
    {
        return context.ContentCache.GetById(KnownDocumentId.NewsIndex);
    }

That all works fine - the request is routed to the controller and returns the render model back to the client.

BUT...

The displayed URL changes from /news/about/thing to /news, which is the instance returned by the handler.

How do I serve the node at /news at the custom route /news/{type}/{filter}?