user verification authentication step should be skipped when there is nothing to verify

Before creating a new issue, please confirm:

[X] I have searched for duplicate or closed issues and discussions.
[X] I have tried disabling all browser extensions or using a different browser
[X] I have tried deleting the node_modules folder and reinstalling my dependencies
[X] I have read the guide for submitting bug reports.

On which framework/platform are you having an issue?

React

Which UI component?

Authenticator

How is your app built?

Create React App

What browsers are you seeing the problem on?

No response

Which region are you seeing the problem in?

No response

Please describe your bug.

After a user (without email nor phone user attribute) signed in, the user verification component is shown. Clicking on the Verify button always results in an error since there is nothing to verify.

What's the expected behaviour?

Currently the emailNotVerified and phoneNotVerified are used to decide if verification is required. Verification should not be required if both email and phone attributes are absent. In this case there is nothing to verify and the verification will fail showing a validation error.

Help us reproduce the bug!

Cognito setup:

user created by admin (signup is disabled)
user can optionally set his email for password recovery
user can chose between username and email for signing in

After a user has signed in (using the amplify sign in component), he is requested to verify his account. Since there is no email nor phone, there is no radio button shown to select what you want to verify and verification always fails.

Note: the user verification component has another bug; when the user has an email set, the user verification component shows a radio button with the email, but the user can click the verify button without selecting the radio button. This always results in an ugly error to be shown. The verify button should be disabled if nothing is selected.

Code Snippet

No response

Console log output

No response

Additional information and screenshots

After signing in with email attribute not set:

Error when clicking Verify:

Error when clicking Verify when email is set, but not selected:

aws-amplify / amplify-ui