[Android] The "Enter you email" screen becomes white, if the app is enlarged while in the split screen view

[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. Put the app in the split screen view and enlarge it.
3. Observe the behavior.

[Expected result]:

• The app's elements are correctly displayed and rendered.

[Actual result]:

• A white screen is displayed.

[Notes]:

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