torchbox/wagtail — pull request #796 by janrito (2014-11-10 14:44:57+00:00)
Title: added Page.check exceptions for all parent classes

`Page.check` must be aware of all foreign keys which point
to parent classes. These keys are allowed to cascade on delete.

This is a solution to issue #792
Sorry the previous pull request had a really ugly case of autoformatting gone too far.