title: WPF Storyboard does not pause
body: <p>I have a very simple Storyboard with an Int32Animation that targets a custom DP on my class.</p>
  
  <p>I have an OnChanged callback for my DP, that does a Console.WriteLine("Current Value: " + MyDP).</p>
  
  <p>When I run the storyboard, I can see the Console output just fine, and when I pause the storyboard, the Console output stops, BUT, when I resume the storyboard, the DP is NOT the next value at it should be. It continues increasing even though the storyboard has stopped.</p>
  
  <p>Has anyone had anything like this happen to them?</p>
  
  <p>here is a code snippet of what Im doing</p>
  
  <pre><code>            Int32Animation element = new Int32Animation();
              element.From = 0;
              element.To = targetTo;
              element.Duration = dur;
              Storyboard.SetTargetProperty(element, new PropertyPath(CurrentFrameProperty));
              _filmstripStoryboard = new Storyboard {SpeedRatio = this.FrameRate};
              _filmstripStoryboard.Children.Add(element);
  
  
          public void Start()
          {
              _filmstripStoryboard.Begin(this, true);
          }
  
          public void Pause()
          {
              _filmstripStoryboard.Pause(this);
          }
  
          public void Unpause()
          {
              _filmstripStoryboard.Resume(this);
          }
  </code></pre>