phpbb/phpbb3 — pull request #502 by nickvergessen (2011-12-15 22:18:15+00:00)
Title: [ticket/10531] Disallow deleting of the last style

Regression from PHPBB3-9675 commit 0e02f5cb0b7f615f1eadd6606a89bfd1b28f0d0d

http://http://tracker.phpbb.com/browse/PHPBB3-9675
http://http://tracker.phpbb.com/browse/PHPBB3-10531