I’m trying to do a SwiftData Migration from non-versioned to versioned and encountering this error:

CoreData: fault: Could not materialize Objective-C class named "Set" from declared attribute value type "Set<Date>" of attribute named deletedDates

In my Model, I have the following attribute which works fine on its own, but I’m unable to run with the VersionedSchema and MigrationPlan.

@Model class Item {
   ...
   var deletedDates: Set<Date> = []
   ...
}

Is there any way to make the migration work without losing any user data?