zendframework/zf2 — pull request #2441 by bakura10 (2012-09-28 08:58:59+00:00)
Title: Allow form collection to have any helper

The Form Collection helper made the check against Zend\Form\View\Helper\AbstractHelper, while some other helpers in Form view helpers inherits from the base view helper (Zend\View\Helper\AbstractHelper), like the FormElement helper, and hence could not be used.

I don't know if it's better to either change every form helper to inherit from Zend\Form\View\Helper\AbstractHelper, though (but it does not make a lot of sense for the Element helper).