Wrong behaviour for touch Id when you reinstall the app.

[sa-mao]

Steps to reproduce:

1. Install the example app on your mobile, and set up touch id login.
2. Uninstall then reinstall the example app on your mobile.
3. Make sure that touch Id is enabled before you start your first login.
4. Start your first login.

The bug:

• When you start your first login, you are still prompt for your fingerprint. After which you are prompt for your consent to use touch Id.
• Regardless of your response, you will be logged in.

What it should do:

• Show the password view.
• After a successful login, ask for your consent to use touch Id.