I submitted an App for TestFlight review in order to undertake a Public Beta program.
In the App Review Information I included notes for the review process, including
information that may be needed to test your app, such as app-specific settings and test registration or account details.
The above link says
You must provide the following information to App Review. It isn’t visible to customers.
However, the public beta site includes the Review Notes, including test credentials!
Is this a bug, or simply a misunderstanding on my part?