如果您的用户未经身份验证，那么您需要在登录时清除您的凭据，并且您的登录"方法现在应该返回正确更新的登录映射.

If your user is unauthenticated, then logs in you need to clear your credentials, and your 'logins' method should now return a properly updated logins map.

以下是可帮助您的文档:http://docs.aws.amazon.com/cognito/latest/developerguide/developer-authenticated-identities.html

Here is the documentation to help you: http://docs.aws.amazon.com/cognito/latest/developerguide/developer-authenticated-identities.html