title: Is JSF 2.0 View Scope back-button safe?
body: <p>Is the JSF 2.0 View Scope "back button" safe? e.g. if I store a model in View Scope and go from page 1, page 2, page 3, to page 4, modifying the model object along the way (via input fields), and then hit the back button twice to go back to page 2 and make changes (taking me again to page 3), will the model in view scope have only changes that were made when page 2 was originally rendered or will it have later pages' changes? </p>
  
  <p>Oracle ADF had/has something called "process scope" that handles this by tokenizing what is placed into session, so each page has its own copy of the model. </p>