Spork 0.9 v 0.8 module error

There are 3 controllers in the app, each called DashboardController. They are split into 2 modules, thus:

class DashboardController < ApplicationController
end

module LayerOne
    class DashboardController < ApplicationController
    end
    module LayerTwo
        class DashboardController < ApplicationController
        end
    end
end

To setup, clone the repo and run using Spork with v0.9.RC

gem install bundler --pre
bundle
bundle exec spork
rspec spec

This shows 2 spec errors about routes not being available in the 'root' DashboardController, even though the specs being run are from the module versions on DashboardController. Running the specs individually works without a problem.

rspec spec spec/controllers/dashboard_controller_spec.rb
rspec spec spec/controllers/layer_one/dashboard_controller_spec.rb
rspec spec spec/controllers/layer_one/layer_two/dashboard_controller_spec.rb

However, if you drop back to 0.8.5 of Spork, thus:

1. Alter the Gemfile to comment line 19 gem 'spork', '~> 0.9.0.rc'
2. Uncomment line 20
3. Run bundle update spork

Then run as before: bundle exec spork and rspec spec

You'll notice that all specs run just fine.