title: Feathers (Starling-based Adobe AIR library) List control doesn't work the second time it's instantiated
body: <p>I'm having a problem with a Feathers List control. It works the first time I enter the screen that contains the list, but the second time I enter that screen in the same app execution, the scrolling list doesn't scroll at all plus texts don't appear. No error appears in the console.</p>
  
  <p>I've tried lots of stuff, but I still have the same problem: It only works the first time it's instantiated. If I exit the screen and come back, it doesn't work at all!</p>
  
  <p>When exiting the screen it's disposed and when coming back to that screen it's a new instance of List. Why does it work only the first time?  </p>
  
  <p>Also, I tried not using a custom ItemRenderer at all, so only the images appear, no text, and still the same happens. The list doesn't respond to scroll events the SECOND time is instantiated. So it's not a problem with the ItemRenderer.</p>
  
  <p>Ok, here's some code:</p>
  
  <pre><code>        typeList = new List();
          typeList.x = Settings.appResolution[0] - Settings.menuTypeColumnWidth;
          typeList.y = Settings.topBarHeight;
          typeList.width = Settings.menuTypeColumnWidth;
          typeList.height = Settings.appResolution[1] - Settings.topBarHeight;
          typeList.dataProvider = new ListCollection(listContents);
          typeList.itemRendererProperties['labelField'] = 'text';
          typeList.itemRendererProperties['accessoryLabelField'] = 'articles';
          typeList.itemRendererProperties['iconSourceField'] = 'thumbnail';
          var listLayout:VerticalLayout = new VerticalLayout();
          listLayout.gap = Settings.menuTypeItemGap;
          typeList.layout = listLayout;
          typeList.addEventListener(Event.CHANGE, onListChange);
          typeList.itemRendererType = MenuTypeItemRenderer;
  </code></pre>
  
  <p>As you can see it's nothing out of the ordinary.</p>
  
  <p>Thanks for your help.</p>