In iOS 8, registerForRemoteNotifications does not work if the requested set of UIUserNotificationSettings is larger than the one currently available

Originator:apoorvkhatreja
Number:rdar://20781785 Date Originated:05/02/2015
Status:Open Resolved:NO
Product:iOS Product Version:8.3
Classification: Reproducible:Always
 
Summary:
Requesting for UIUserNotificationTypeSound permissions after relinquishing it once seems impossible. This prevents us from building an in-app settings toggle that allows the user to disable notification 'sounds' temporarily and enable them later.

Steps to Reproduce:
1) Register for remote notifications in iOS 8 with 3 user notification settings: UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge
2) Press allow on the UIAlertView that comes up
3) Check notification centre settings for your app, observe that toggle for 'Sounds' is ON.
4) Register for remote notifications again with 2 permissions only this time: UIUserNotificationTypeAlert | UIUserNotificationTypeBadge
5) Check notification centre settings for your app, observe that the toggle for 'Sounds' is now OFF.
6) Register for remote notifications again with 3 permissions this time: UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge
7) Check notification centre settings for your app.


Expected Results:
'Sounds' toggle should turn ON after calling registerForRemoteNotifications again.

Actual Results:
'Sounds' toggle remains OFF, no matter how many times you call registerForRemoteNotifications with the appropriate UIUserNotificationSettings.

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