Fullscreen QApplication: Application position changed after split view opened&closed

Preconditions:

Fullscreen QApplication includes QSpinBox (in the middle of the application screen). View is on portrait mode.

• Testeed with 'styleDemo' QT Demo application.

Test steps:
1. Tap the spin box
--> split view is opened.
2. Close the split view.

Expected result:
Application is displayed as it was before opening the split view.

Actual result:
Bottom of the application view has moved upwards (i.e. top part of the application view is not visible at all).