title: Handle before_filter with overridden functions
body: <pre><code>class ApplicationController &lt; ActionController::Base
    def func
    end
  end
  
  class BaseController &lt; ApplicationController
    def func(a)
    end
  end
  
  class MyController &lt; BaseController
    before_filter :func # I want this to call ApplicationController::func
  end
  </code></pre>
  
  <p>In this case, the BaseController::func is called. How do I call ApplicationController's one?</p>