title: How to intersect two ManyToMany fields with a Django Query?
body: <p>Let's say I have the following Django models:</p>
  
  <pre><code>class A(models.Model):
      keywords = models.ManyToManyField(Keyword)
  
  class B(models.Model):
      keywords = models.ManyToManyField(Keyword)
  </code></pre>
  
  <p>I have an A object. I want to find all B objects where some keyword in the B object is the same as some keyword in the A object.</p>
  
  <p>What is the correct way to write this query?</p>