title: Angular checkbox first click does nothing if ng-checked is true
body: <p>So, this seems like it must be a newb question. Here is a plunkr <a href="http://plnkr.co/edit/r9xWht5DZtOTvbblXwYZ" rel="nofollow">http://plnkr.co/edit/r9xWht5DZtOTvbblXwYZ</a></p>
  
  <pre><code>&lt;input id="reviews"  ng-model="reviews" type="checkbox" ng-checked="reviews == 1" /&gt;
  </code></pre>
  
  <p>Basically I have a boolean in the db that I set scope to, it is either 1 or 0 in db. If it is true then the checkbox is checked, if not then it isn't. The problem I am having is that if it is checked, the first time 1 uncheck the box, scope doesn't change. When I click it (check it again) the scope value turns into true, then it works as expected.</p>
  
  <p>Again, I must be overlooking something trivial here. I was looking into $scope.$watch should I be using that?</p>
  
  <p>Thanks!</p>