Hello everyone!
During I probing Rails 3.1.rc1 noticed along the majors many little changes and deprecations. Most of them (changes and deprecations) easy fixable except ONE:
If we have: Dog as ActiveRecord class
puppy = Dog.new puppy.new_record? => true dumped_puppy = Marshal.load(Marshal.dump(puppy)) dumped_puppy.new_record? => false
Why?