title: Does django-celery-backend only save a record when the task completes?
body: <p>I've been doing some testing on <a href="https://github.com/celery/django-celery-results" rel="nofollow noreferrer">django-celery-results</a>.</p>
  
  <p>I have found that the task result is only stored when the task completes, using the sqlite db.</p>
  
  <p>Is this correct?</p>