Here is the ticket: https://code.djangoproject.com/ticket/19668 and the pull request https://github.com/django/django/pull/674
One user commented on the ticket raising a concern that it could possibly be misused if the data is set after it had been used. It is certainly a valid concern, however it should be made clear in the docs when to use it and/or raise an exception if `is_valid` has already been called. Thoughts? -- You received this message because you are subscribed to the Google Groups "Django developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To post to this group, send email to django-developers@googlegroups.com. Visit this group at http://groups.google.com/group/django-developers?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
