I am working on an MVC site built with Umbraco and I've hit a slightly odd problem where I have an action that looks like this:

public ActionResult Story(int Id, string Name)
    {
        UmbracoHelper queryMe = new UmbracoHelper(UmbracoContext.Current);
        IPublishedContent story = queryMe.TypedContent(Id);
        NewsStoryViewModel storyView = new NewsStoryViewModel(story);
        return base.Index((RenderModel)storyView);
    }

When this is called, the Id is set, the helper locates the IPublishedContent and then it crashes on the creation of the ViewModel.

The ViewModel looks like this:

public NewsStoryViewModel : RenderModel
  {
     public void NewsStoryViewModel(IPublishedContent content) : base(content)
         {
             // do some stuff
         }
  }

The exception comes from the call to RenderModel(content) which is throwing a NullReferenceException:

  [NullReferenceException: Object reference not set to an instance of an object.]
  Umbraco.Web.Models.RenderModel..ctor(IPublishedContent content) +47

Looking at the source it appears that we have a problem with UmbracoContext.Current.PublishedContentRequest being unset. Is there a way around this?