Small dialog position changing on split view when virtual keyboard changed between qwerty<->alphanumeric

Preconditions:

QDialog includes e.g. one QLineEdit. QDialog is small dialog i.e. not fullscreen or maximized.
View orientation is on portrait mode.

Test steps:
1. Tap the QLineEdit input area
--> split view is opened. QLineEdit is focused on split view.
2. Change virtaul keyboard mode from qwerty to alphanumeric (or vice versqa).

Expected result:
Virtual keyboard mode is changed and position of QLineEdit is not changed on split view screen area.

Actual result:
Virtual keyboard mode is changed. Position of QLineEdit 'jumps' to the top of split view screen area.
If split view is closed, the QLineEdit position is correct on application screen.