title: CakePHP label option on input select form not working as expected
body: <p>My select form is working perfectly, but my label will not display no matter the variation or arrangement of arguments.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>&lt;?php echo $this-&gt;Form-&gt;input('plan_detail_id', $plans_list, array(
      'type' =&gt; 'select',
      'label' =&gt; 'Select a the Plan Detail',
      'empty' =&gt; '-- Select a the Plan Detail --'
  )); ?&gt;
  </code></pre>
  
  <p>As you can see I have a second argument <code>$plan_list</code> which is normally the place for the label tag. For example, all of my other labels like such are OK:</p>
  
  <pre><code>&lt;td&gt;&lt;?php echo $this-&gt;Form-&gt;input('age_id', array(
      'label' =&gt; 'Select an Age Range',
      'empty' =&gt; '-- Select an Age Range --'
  )); ?&gt;&lt;/td&gt;
  </code></pre>
  
  <p>Note: there is no second <code>$argument</code> like the first example. Am I doing something totally wrong? Or is this not possible or a bug?</p>