title: NSManagedObject manipulation after deletion
body: <p>I have the following questions about managed objects manipulation after deletion:</p>
  
  <ol>
  <li>Can a deleted managed object still be used before the commit? After commit?</li>
  <li>Can a deleted managed object be re-inserted without creating a new one (with insertNewObjectForEntityForName:inManagedObjectContext:)?</li>
  </ol>