panorama-control

I wrote an app for Windows Phone 7, recently I've upgraded it to Windows Phone 8 and I plan on adding some features. Unfortunately, I've run into a problem immediately after the upgrade. The main part of the app is a Panorama control that is databound. On SelectionChanged I am fetching the data for the new PanoramaItem + 1 (preselecting data so it's there when the person eventually goes to the item). That worked fine in WP7 but the SelectionChanged event doesn't fire with WP8. I've reproduced the issue with a new WP8 app that wasn't upgraded and it's also isolated to databound controls. If I