onShippingChange is not triggered

[dimakpoq]

Describe the bug
The onShippingChange callback is only called once, but it isn't called the second time. This makes it impossible to invalidate the wrong address in UI. The user can click Complete Purchase button, and then he will see the generic Error message "Place order failed. Please try again.".

To Reproduce
Steps to reproduce the behavior:

1. Select invalid address (like, address from another country) in a PayPal view.
2. onShippingChange callback is called ✅
3. Leave PayPal checkout (close the PayPal view without proceeding to purchase)
4. Launch PayPal view again
5. onShippingChange callback is not called ❌

Expected behavior
5. onShippingChange callback is called

Smartphone (please complete the following information):

• Android Version: any
• SDK Version 1.2.1

[github-actions]

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