Temporary monkeypatch to fix a bug with ActiveRecord::AutosaveAssociation until it's fixed upstream.

rails_autosave_fix_monkeypatch.rb

module ActiveRecord
  module AutosaveAssociationFix
    private
    def associated_records_to_validate_or_save(*)
      # There exists a case (new_record) where the returned array is actually the internal collection array. 
      # Unfortunately, this now gets mutated when records are removed. This means use of mark_for_destruction 
      # (to prevent creation of built records) can result in some records not being iterated over (and 
      # consequently not saved) on creation.
      super.try(:dup)
    end
  end
  
  ActiveSupport::Deprecation.warn("Including Rails 3.1 AutosaveAssociation fix monkey patch. This should be removed when fixed in Rails.")
  ActiveRecord::Base.send(:include, AutosaveAssociationFix)
end