Does Mango RTM introduce a shared calendar bug?

imageWe Love WP reports that the 7720 build of Windows Phone 7 Mango, released to manufacturers and already turning up on handsets for sale, appears to have a bug not present in the 7712 beta released to developers.

WlWP reports that it appears 7720 users are not able to edit items in shared calendars on Windows phone 7.  Changes are made on the handset, but not synchronized online, even when users have the required permissions.

They note that when the same issue is tested on build 7712 calendar entries are synchronized as expected.

Have any of our readers run into this problem? Let us know below.