Self referential belongs_to

I noticed that eager loading a belongs to association that points back
to an item of the same class is causing AR to lock up.

For example

class Layout < ActiveRecord::Base

belongs_to :flipped_layout, :class_name => “Layout”, :foreign_key =>
“flipped_layout_id”
end

So when I do, Layout.find(:all, :include => :flipped_layout), it locks
up.

Am I doing something wrong or this a known bug with Rails?