ng-true-value doesn't work with integers

[darkoromanov]

See example here:

http://plnkr.co/edit/VxJVpbRV4vkbivKpAUUn?p=preview

<script>
    function Ctrl($scope) {
      $scope.value1 = true;
      $scope.value2 = 1;
    }
  </script>
  <form name="myForm" ng-controller="Ctrl">
    Value1:
    <input type="checkbox" ng-model="value1">
    <br/>Value2:
    <input type="checkbox" ng-model="value2" ng-true-value="1" ng-false-value="0">
    <br/>
    <tt>value1 = {{value1}}</tt>
    <br/>
    <tt>value2 = {{value2}}</tt>
    <br/>
  </form>

[pkozlowski-opensource]

This is a duplicate of the more generic report here:
#1199