title: Antd getFieldDecorator()'s options trigger not working
body: <p>I have the following code:</p>
  
  <pre><code>&lt;FormItem {...formItemLayout} label="Name"&gt;
    {getFieldDecorator(
      `category[categories_langs][${index}][name]`,
      {
        rules: [
          {
            required: required,
            message: "Please input category name!"
          }
        ],
        validateTrigger: "onBlur",
        trigger: 'onBlur'
      }
    )(
        &lt;Input
          name={`category[categories_langs][${index}][name]`}
          key={index}
        /&gt;
    )}
  &lt;/FormItem&gt;
  </code></pre>
  
  <p>When I add the <code>trigger: 'onBlur'</code> the Input component doesn't show the text that i enter. The idea is for Antd to collect the text I type on blur, because on onChange it's very slow. Also, this example works if I wrap the Input in a <code>&lt;div&gt;</code> which is strange. What am I doing wrong, and how do I make antd to collect the typed text onBlur, not on change? Thanks.</p>