title: In YUI3, is there a way to "reset" models to the previous saved values?
body: <p>I'm using models in yui3, and although there are functions like reset() and undo(), they don't quite accomplish what I'm looking for.</p>
  
  <p>I set values at different times, but may want to just undo everything to the point of the last save... is there a way to do so at this time?</p>