title: Click event not working after interation
body: <p>I have a chart with a click event, it works well until I click on the label (group/fixed labels). After this the event doesn't work anymore.</p>
  
  <p>I've attached this event to my page:</p>
  
  <pre><code>d3.selectAll("rect.nv-bar").on("click", function (d) {
      alert("Clicked");
  });
  </code></pre>
  
  <p>Here's a fiddle with the problem:
  <a href="http://jsfiddle.net/ygQZW/" rel="nofollow">http://jsfiddle.net/ygQZW/</a></p>
  
  <p><strong>Am I doing something wrong or it's some kind of bug?</strong></p>
  
  <p>-- <strong>UPDATE</strong> --</p>
  
  <p>The solution that @explunit posted solved 50% of my problem. Now, when I click on the color labels for hide/show the bars, the click effect stops on the bar previously hidden.</p>
  
  <p>Here's the updated fiddle: <a href="http://jsfiddle.net/ygQZW/1/" rel="nofollow">http://jsfiddle.net/ygQZW/1/</a></p>
  
  <p><strong>How can I fix this?</strong></p>