title: Sitecore saveUI processor redirecting to item page after moving it
body: <p>I have implemented a Sitecore saveUI processor for moving news items to a specific location inside a year/month hierarchical structure. It does the job well, except for the fact that when used inside the Page Editor (navigating to an item's page and then trying to save, and implicitly move, the item) I am redirected to our 404 page, since Sitecore expects the original item's url to still be valid after the operation.<br>
  Is there any way to tell Sitecore that the item has been moved? I'm thinking at some property in SaveArgs, but any solution would do, as long as it's somewhat maintainable (for example, I'd prefer a server-side solution, not a client-side JavaScript-based one, if possible).</p>