gregbell/active_admin — pull request #2736 by brennovich (2013-11-26 12:18:29+00:00)
Title: Ensure undecorated object assign for comment's resource_type

Comments form were being generated from decorated `@resource`, breaking
`AA::Comments`. This patch acts on `AA::Comment.resource_type` there is
being used to populate `resource_type` hidden input in comments' form.

Fix #2733.