:parent seems to be ignored for nested factory definitions

[beverlycodes]

I had an issue where it appeared that callbacks weren't being inherited on my child factories, but after some investigation the issue appears to be that :parent just gets ignored if a factory is defined within another factory block.

FactoryGirl.define do
  factory :event do
    name "My Event"
    occurs_at Date.today

    factory :structured_event do
      after_create do |e|
        e.add_station 'Sales Booth'
      end
    end

    factory :staffed_event, :parent => :structured_event do
      after_create do |e|
        station = e.stations.find_by_name("Sales Booth")
        e.add_worker(FactoryGirl.create(:worker), station)
      end
    end
  end
end

When running my tests, it appears that :staffed_event inherits from :event instead of :structured_event. At the very least, it seems to be missing the callback from :structured_event.

I probably shouldn't be mixing declaration styles like this, but if I choose to do so anyway, I'd expect :parent to be honored.