title: Multiple-select form and query django
body: <p>One of my fields in my model has a choice field:</p>
  <pre><code>STATUS = Choices(
     ('first', _('car')),
     ('second', _('motorcycle')),
     ('third', _('bicycle')),
  )
  </code></pre>
  <p>My filter function looks like this:</p>
  <pre><code>choice = request.GET.get('choice')
  
  vehicles = vehicles.filter(status=choice).order_by('-date_posted')
  </code></pre>
  <p>The filter works, when I select only one choice, but when I am trying to select more than one choice it only catches the last one selected.</p>
  <p>The query looks like that:</p>
  <pre><code>?choice=first&amp;choice=second
  </code></pre>
  <p>Any idea how to make it, so it would display items, based on more than one choice?</p>