Open Radar

 
Summary:
CNContactViewController for new contact doesn't show proper avatar, set by imageData, when other contact has the same phone number.

Steps to Reproduce:
1. Add a contact with number +1 (800) 123-4567
2. Create a simple app that shows CNContactViewController for new contact:
```
    let cnContact = CNMutableContact()
    let image = UIImage(named: "")! // any valid image here
    cnContact.imageData = UIImagePNGRepresentation(image)
    cnContact.givenName = "Test"
    cnContact.phoneNumbers = [CNLabeledValue(label: CNLabelHome, value: CNPhoneNumber(stringValue: "+1 800 123 4567"))]

    let viewController = CNContactViewController(forNewContact: cnContact)
    let navigationController = UINavigationController(rootViewController: viewController)

    present(navigationController, animated: true)
```

Expected Results:
The image we assigned for the `imageData` should be in the place of the avatar.

Actual Results:
When presented, the contact will have initials (of the contact you added before) as an avatar.

Version:
12.0.0

Notes:
When you remove the old contact and present the controller again, it will have a proper avatar.