title: Umbraco AncestorOrSelf(int) - what does it do?
body: <p>When using:</p>
  
  <pre><code>@Model.AncestorOrSelf(3)
  </code></pre>
  
  <p>In a .cshtml template in Umbraco, this would presumably limit the node traversal to 3 levels.  Is this correct, and if so can anyone also confirm if the current node has the index zero?</p>