title: Selected option in angular select
body: <p>I have select with ng-repeat:</p>
  <pre><code>&lt;select class=&quot;span5 ui-select2 id=&quot;goal_{{goal.id}}&quot; multiple=&quot;multiple&quot;&gt;
    &lt;option ng-repeat=&quot;counterGoal in counterGoals&quot; value=&quot;{{counterGoal.id}}&quot;&gt;{{counterGoal.name}}&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  <p>in <code>goal</code> model I have <code>counter_goal_ids</code> array like <code>[1,2,3,4,5,6]</code>.</p>
  <p>How can I select options that are included in <code>goal.counter_goal_ids</code>?</p>