django/code.djangoproject.com — pull request #8 by erikr (2014-02-23 15:09:15+00:00)
Title: Fixed #22127 -- Reverse default ordering in Trac's ticket list

As trac is rather a behemoth to install, I have not tested this patch myself. However, based on http://trac.edgewall.org/changeset/7553 and http://trac.edgewall.org/wiki/TicketQuery, this should be the correct change.