hey I'm having trouble deleting a User... getting

The change you are trying to make would violate the required relation 'NotificationToUser' between Notification and User"

here's the relevant part of the datamodel

type User {
  notifications: [Notification] @relation(name: "UserNotification" onDelete: CASCADE)
}

type Notification {
    recipient: User @relation(name: "UserNotification" onDelete: SET_NULL)
}

using prisma server 3.4 (I think!?)