title: Expected behaviour in Sitecore for config include files with patch:delete
body: <p>I am working on moving the custom configuration settings for a Sitecore (6.2) project into a separate <code>App_Config\Include</code> file.  I am testing my changes using the sitecore page /sitecore/admin/ShowConfig.aspx.  My question is <strong>what is the expected behaviour when using the <code>&lt;patch:delete /&gt;</code> element?</strong></p>
  
  <p>In my include file I have the following:</p>
  
  <pre><code>&lt;setting name="Preview.DefaultSite"&gt;
    &lt;patch:delete/&gt;
  &lt;/setting&gt;
  </code></pre>
  
  <p>When I look at ShowConfig.aspx I see the following:</p>
  
  <pre><code>&lt;setting name="Preview.DefaultSite" value="website"&gt;
    &lt;delete/&gt;
  &lt;/setting&gt;
  </code></pre>
  
  <p>Is this correct and expected behaviour, or should the <code>&lt;setting name="Preview.DefaultSite"&gt;</code> element completely disappear?</p>