Using NSPersistentCloudKitContainer, how do I add (or modify) the NSManageObjects that are part of a Share/Zone?
I have initially created a CKShare using NSPersistentCloudKitContainer.share(_:to:completion:), how can I add objects to that share later on? Calling the method again (with to:existingShare filed), always seems to create a new Share.
In fact, I don't understand what the to: parameter is for? It doesn't matter if I set it or not, a new CKShare is always created.