Connect Tesla modal disappears when switching app

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/connect-tesla-modal-disappears-when-switching-app/
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When connecting to Tesla, the modal is a wizard-like workflow where you first give your username, click Next, then give your password, click Next, then give your MFA security code. The problem is that when switching on an iPhone 11 to say a password manager or the Authenticator, the modal disappears and you have to start over.