[Android] You are wrongly redirected to the "Sign In" screen if the "Change app aspect ration" button is tapped

[Softvision-MariusComan]

[Affected Platforms]:

• Android 8.0.0 (Samsung S8)

[Prerequisites]:

• Have the latest version of the "Firefox Notes" application (app-release-signed) custom built on 8/1/2018 installed.
• You are not logged into "Firefox Notes".

[Steps to reproduce]:

1. Open the Notes application and tap the "Sign In" button.
2. Tap the "Overview" button.
3. Tap the "Change app aspect ration" button and observe the behavior.

[Expected result]:

• The app is displayed on the whole screen.

[Actual result]:

• The app is displayed on the whole screen but you are redirected to the "Sign In" screen.

[Notes]:

• This issue is not reproducible on other test devices.
• Attached a screen recording of the issue: