Split view opening on landscape for QGraphicsView embedded QTextEdit or QPlainTextEdit

Preconditions:

Application includes QGraphicsView with one embedded QTextEdit or QPlainTextEdit. View includes a scroll bar.
Application view is on landscape mode.

Test steps:
1. tap the text widget input field
--> split view is opened.

Expected result:
Split view is correctly opened.

Actual result:
Split view displayes the text widget horizontally divided (part of the screen shows text widget, part of the creen shows background application).