GraphicsView with scrollbars: background application visible after split view opened and closed

Preconditions:

GraphicsView includes scroll bars and some text input widgets.
View is on portrait orientation.
Tested with pvkb-addressbook test application:

• select GWeb button and 'Mike's test'

Test steps:
1. Tap some text input field.
--> split view is opened.
2. Close the split view.

Expected result:
GraphicsView is correctly drawn as it was before opening the split view.

Actual result:
Background application is visible on view (on split view virtual keyboard area) after split view has been closed.