cakephp/cakephp — pull request #1208 by kevenages (2013-03-29 14:44:25+00:00)
Title: Form Helper: Override hidden field with option hiddenField => false

Reported in lighthouse

https://cakephp.lighthouseapp.com/projects/42648-cakephp/tickets/3728-FormHelper-ignores-hiddenField-option-for-primaryKey