django/django — pull request #1526 by timgraham (2013-08-29 00:07:56+00:00)
Title: Fixed #20881 -- Removed contrib.auth.models.AbstractUser.get_absolute_url()

The definition is arbitrary and creates a broken "view on site"
link in the admin if a project doesn't define such a URL.

IMO, this can be considered a bug fix and not require a deprecation. Let me know if you disagree.