为什么旧的CKDatabaseSubscription尽管从代码和CloudKit仪表板中删除了，仍然触发了通知

Question

我正在创建两个CKDatabaseSubscription，一个用于privateCloudDatabase，一个用于sharedCloudDatabase，如下所示：

// Subscription to private database //

CKDatabaseSubscription *privateSubscription = [[CKDatabaseSubscription alloc] initWithSubscriptionID:@"checkPrivateDatabaseChanges"];

CKNotificationInfo *privateNotificationInfo = [[CKNotificationInfo alloc] init];

privateNotificationInfo.shouldSendContentAvailable = true;

privateNotificationInfo.alertBody = @"private database subscription";

privateSubscription.notificationInfo = privateNotificationInfo;

CKModifySubscriptionsOperation *privateSubscriptionModify = [[CKModifySubscriptionsOperation alloc] initWithSubscriptionsToSave:[NSArray arrayWithObject:privateSubscription] subscriptionIDsToDelete:nil];

[[CKContainer defaultContainer].privateCloudDatabase addOperation:privateSubscriptionModify];

//

// Subscription to Shared database //

CKDatabaseSubscription *sharedSubscription = [[CKDatabaseSubscription alloc] initWithSubscriptionID:@"checkSharedDatabase"];

CKNotificationInfo *sharedNotificationInfo = [[CKNotificationInfo alloc] init];

sharedNotificationInfo.shouldSendContentAvailable = true;

sharedNotificationInfo.alertBody = @"shared database subscription";

sharedSubscription.notificationInfo = sharedNotificationInfo;

CKModifySubscriptionsOperation *sharedSubscriptionModify = [[CKModifySubscriptionsOperation alloc] initWithSubscriptionsToSave:[NSArray arrayWithObject:sharedSubscription] subscriptionIDsToDelete:nil];

[[CKContainer defaultContainer].sharedCloudDatabase addOperation:sharedSubscriptionModify];

//

一切正常，我收到有关更改的通知，但是即使将这些订阅从代码中删除并从cloudkit仪表板中删除，它们似乎仍会发送通知。

实际上，一个星期前删除的旧测试订阅仍在发送带有测试警报的通知。 我不愿意重置CloudKit容器，但这是否是正确重置订阅的唯一方法？