title: loading image by Loader.loadBytes(byteArray)
body: <p>i like to ask about one thing :</p>
  
  <p>If i create Loader and load external image by URLRequest , ill have result :</p>
  
  <pre><code>loader.content is Bitmap
  loader.content.bitmapData is BitmapData
  </code></pre>
  
  <p>But if I use Loader.loadBytes(ImageBytes) , result is different even if ImageBytes is loader.contentLoaderInfo.bytes :</p>
  
  <pre><code>bytesLoader.content is MovieClip
  bytesLoader.content.getChildAt(0) is Bitmap
  bytesLoader.content.getChildAt(0).bitmapData is BitmapData
  </code></pre>
  
  <p>why ?</p>