title: Cordova platform specific config.xml does not include the correct features after build
body: <p>One single new feature in my general <code>config.xml</code> file gets not copied to my specific iOS config file. This part is missing in the iOS config after running <code>cordova build ios</code></p>
  
  <pre><code>&lt;platform name="ios"&gt;
      &lt;feature name="SONativeInterface"&gt;
          &lt;param name="ios-package" value="SONativeInterface" /&gt;
      &lt;/feature&gt;
  &lt;/platform&gt;
  </code></pre>
  
  <p>Whereas all others are transfered correctly. What is going wrong?</p>