title: update multiple fields via filter for a django model
body: <p>I have defined the following model:</p>
  
  <pre><code>class User(models.Model):
      userid = models.CharField(max_length=26,unique=True)
      coins = models.IntegerField()
      points = models.IntegerField()
      language = models.CharField(max_length=3)
  </code></pre>
  
  <p>Now I would like to run a filter query and update coins and points for all users matching my query.</p>
  
  <p>However, I must have gotten something wrong, since field values won't get updated this way (I don't receive error messages):</p>
  
  <pre><code>User.objects.filter(language='en', points__gte=score).update(coins='100', points='10')
  </code></pre>
  
  <p>What is the correct way to update the fields for my selection?</p>