Purchase auto-renewable subscription
Purchase the subscription again during the period of validity.
SKPaymentTransactionStatePurchasing arrives
Popup appears "You are currently subscribed" with "Manage" and "OK" buttons.
iOS 13:
Purchase fails as SKPaymentTransactionStateFailed arrives with SKErrorPaymentCancelled
Purchase succeeds as SKPaymentTransactionStatePurchased arrives
I found no documentation for such change, so any reference would be greatly appreciated.
It also would be interesting to know if anyone else detected this behavior and whether this behavior appears in production environment or only in test environment.