title: Strange DoubleRenderError in Rails 3
body: <p>I'm trying the standard <code>redirect_to some_path and return</code> syntax but for some reason Rails 3 isn't liking this.</p>
  
  <pre><code>class MyController &lt; ApplicationController
    def some_action
      redirect_to "http://www.google.com"
      return
    end
  end
  </code></pre>
  
  <p>Gives me the standard error message:</p>
  
  <pre><code>Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like "redirect_to(...) and return".
  </code></pre>
  
  <p>It references the exact line of my <code>redirect_to "http://www.google.com"</code> in the error.  Can't figure out how this is possible!</p>
  
  <p>I've commented out all before filters I can find, no difference.</p>
  
  <p>This is Rails 3.0.0</p>