views rss feed not being rendered

Not sure if this is a problem caused by upgrading views to the latest 2.x version or not, but basically the views rss feed is no longer displaying when using fields. I was able to fix the problem by implementing a render() function in the style plugin - I think perhaps whatever render() function was being inherited was checking for a row style plugin value... Anyway attached patch fixed the issue and my rss feed is now being rendered.