2

I can't find anywhere in Apple's guidelines what the behavior of Face ID should be in the following scenario:

  1. I enter valid credentials
  2. I enable Face ID
  3. I use Face ID to log in (for some period)
  4. I return to the login screen and disable Face ID
  5. I reenable Face ID

As a convenience having 5 use the credentials supplied in 1 makes sense (doing otherwise would be frustrating), but what if between 4 and 5 I enter new credentials (e.g. I've changed my password or I need to use a different e-mail address). In that case having 5 use the credentials supplied in 1 no longer makes sense.

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