fix #37 so that default values are carried through to multiple attrib…

…utes defined on the same line

lib/active_interaction/base.rb

@@ -139,6 +139,8 @@ def self.method_missing(type, *args, &block)
 
  # @private
  def self.set_up_reader(attribute, filter, options, &block)
+ options = options.dup
+
  default = nil
  if options.has_key?(:default)
  begin

spec/support/interactions.rb

@@ -14,6 +14,7 @@
  send(type, :default, filter_options.merge(default: generator.call))
  send(type, :nil_default,
  filter_options.merge(allow_nil: true, default: nil))
+ send(type, :multi_default_1, :multi_default_2, filter_options.merge(default: generator.call))
 
  def execute
  {
@@ -75,6 +76,10 @@ def execute
  it 'returns the correct value for :default' do
  expect(result[:default]).to eq default
  end
+
+ it 'sets the default on multiple attributes' do
+ expect(outcome).to be_valid
+ end
  end
  end
 end