title: How to pre populate charfield values, as a dropdown list from one model to another in django admin panel
body: <p>Is it possible to pre populate charfield values, as a dropdown list from one model to another in admin panel?</p>
  <p>In other words having the below two models:</p>
  <pre><code>class A(models.Model):
      name = models.CharField(max_length=50, null=True, blank=True)
  
  class B(models.Model):
      name = models.CharField(max_length=50, null=True, blank=True)
  </code></pre>
  <p>If I have let's say ten instances stored of model A with <code>name</code> field having  <code>null = False</code> , I want these values to show up as a dropdown list when I am trying to add a new instance of model B in admin panel at the <code>name</code> text field area.</p>
  <p>Is it possible?</p>