title: How can I allow django admin to set a field to NULL?
body: <p>I've set my Model field to <code>null=True</code>, which allows NULL in MySQL, but I can't seem to assign NULL to the field through Django Admin. I've tried also setting <code>blank=True</code>, but that just sets the field to an empty string. Following <a href="https://stackoverflow.com/questions/4446652/django-how-to-set-a-field-to-null">this</a> didn't work either, as the field value was set to "None", the string.</p>
  
  <p>Any ideas?</p>