title: Vue not setting <select> value by v-model in IE
body: <p>This seems to work in Chrome, but not IE. Do you have any ideas why?</p>
  
  <pre><code>&lt;select v-model="selected"&gt;
     &lt;option v-for="option in options" :value="option"&gt;{{ option.foo }}&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  
  
  <pre><code>var data = [{ foo: 1 }, { foo: 2 }]
  
  var demo = new Vue({
      el: '#demo',
      data: {
          selected: null,
          options: data
      },
      mounted: function() {
          this.selected = data[1]
      }
  })
  </code></pre>
  
  <p><a href="http://jsfiddle.net/yMv7y/3267/" rel="nofollow noreferrer">http://jsfiddle.net/yMv7y/3267/</a></p>
  
  <p>Related ticket: <a href="https://github.com/vuejs/vue/issues/6209" rel="nofollow noreferrer">https://github.com/vuejs/vue/issues/6209</a></p>