title: check_box_tag doesn't pass any parameter if not checked
body: <p>I'm trying to have an if else statement in the controller to do something if the <code>check_box_tag</code> is checked and something else if it isn't checked.</p>
  
  <pre><code>&lt;%= check_box_tag "apply[]", 1, false %&gt;
  </code></pre>
  
  <p>If it is checked and the form is submitted <code>"apply"=&gt;["1"]</code> is passed as a parameter, if it isn't checked nothing is sent. </p>
  
  <p>Can I have a <code>"apply"=&gt;["0"]</code> passed as a param if it isn't checked?</p>