title: Meteor template gets rendered twice
body: <p>My template is getting rendered twice on first load. I notice this because in</p>
  
  <pre><code>Template.home.rendered = function() {
      console.log('rendered'); // =&gt; this is printed out twice
      console.log(Data.find({}).count()); // =&gt; this is initially 0, then 1 the second time
  }
  </code></pre>
  
  <p>Furthermore, on the first load, no Data is available. Yet on the second load, the Data is there.</p>
  
  <p>Does anyone know what this problem might be, and why the data only appears the second time?</p>