def initialize_dup(other)
cloned_attributes = other.clone_attributes(:read_attribute_before_type_cast)
self.class.initialize_attributes(cloned_attributes, :serialized => false)
cloned_attributes.delete(self.class.primary_key)
@attributes = cloned_attributes
_run_after_initialize_callbacks if respond_to?(:_run_after_initialize_callbacks)
@changed_attributes = {}
self.class.column_defaults.each do |attr, orig_value|
@changed_attributes[attr] = orig_value if field_changed?(attr, orig_value, @attributes[attr])
end
@aggregation_cache = {}
@association_cache = {}
@attributes_cache = {}
@new_record = true
ensure_proper_type
populate_with_current_scope_attributes
super
end