title: How to stop jQuery loading twice?
body: <p>I've run into a problem. The framework I'm using (Symfony2) has support for third party bundles. The <code>CreateBundle</code> requires that you include some javascript on the page. To do this, you call:</p>
  
  <pre><code>    {% render(controller("cmf_create.jsloader.controller:includeJSFilesAction")) %}
  </code></pre>
  
  <p>This is where the problem arises. That template includes jquery. I have another bundle which also includes jquery. When the second jquery script loads, it seems to overwrite the first one, breaking createJS. </p>
  
  <p>How can I make it so that one instance of jQuery is used regardless of how many times it is included in the document?</p>
  
  <p><strong>Edit</strong></p>
  
  <p>I don't have control over the sources as both are rendered as templates from another bundle. How can I resolve the conflicts without modifying the sources of either include?</p>