Preferred networks aren't used with a co-branded card when user does not select a network themselves in CardForm component

[nicolasdevienne]

Describe the bug
The list of preferred networks that should be used to process payments made with a co-branded card isn't used when user does not select a network themselves in CardForm component. For PaymentSheet it works.

To Reproduce
Steps to reproduce the behavior:

1. Configure CardForm component with preferredNetworks={[CardBrand.Mastercard, CardBrand.Visa]} props
2. Enter co-branded card test number 4000002500001001
3. Add card
4. Properties card.networks.preferred = null and card.display_brand = "cartes_bancaires" while they should be equal to "visa"

Expected behavior
Preferred networks should be used.

Screenshots

Smartphone (please complete the following information):

• Device: iPhone 15 Pro (simulator)
• OS: iOS 17.4

Additional context

• @stripe/stripe-react-native = 0.37.1

[nicolasdevienne]

@charliecruzan-stripe