yipdw

URL scheme goof:

https://gist.github.com/624421/417c372a474a16566989261c8e0f9944fe32...

should be (for consistency)

http://gist.github.com/624421/417c372a474a...

When using default_scope containing :include, ActiveRecord::Base#exists? raises a ActiveRecord::MissingAttributeError.

A demonstration of the error for ActiveRe...