title: has_one belongs_to association autosave => true not saving
body: <p>I have two models</p>
  
  <pre><code>Board
  has_one    :pref, :autosave =&gt; true,  :dependent =&gt; :destroy
  
  Pref
  
  belongs_to :board
  </code></pre>
  
  <p>The pref object has defaults that are set in the database so no information needs to be used to create the object when the board is created. The ID for the board is in the pref table.</p>
  
  <p>Since the :autosave=> true I thought that when I create and save a new Board object a pref object would be created and saved automatically.</p>
  
  <p>This is not working this way so I must be misunderstanding.</p>
  
  <p>Is there a way to autosave a pref object when a board is saved?</p>
  
  <p>Thank you in advance</p>