There are a few things about how Core Data 4 Cloud Kit initializes that I'm stuggling to understand. I've spent most of the day finally getting a schema initialized on the server, and learnt a few things along the way.Firstly, even though I have a Default configuration in my managed object model, and it has been there from day one with the option Used with CloudKit checked for true, if I create an `NSPersistentStoreDescription` and set the configuration property to Default, when I try to load the stores, it will fail, saying Unable to find a configuration named 'Default' in the specified managed object model.. If I inpsect the debug description for my ManagedObjectModel instance, it does indeed not have any reference to the string Default in it (I'm not sure if debugDescription is actually printing out the configuration names however). Why does this fail? I can only get my store loaded and the schema initialized if I remove the code that sets the configuration name to Default.The next thing that tripped me up