Only half of small QInputDialog displayed on Split view after orientation switch

Preconditions:

Application includes small (=not fullscreen or maximized) QInputDialog on top/left (or top/right) position on application screen.
View is on portrait orientation.

Test steps:
1. Tap the text input field on QInputDialog.
--> split view is opened on portrait mode (with qwerty or alphanumeric virtual keyboard).
2. Switch the orientation from portrait to landscape.

Expected result:
QInputDialog is correctly visible on split view screen area.

Actual result:
Only half of QInputDialog is visible on split view screen area. If orientation is switched back to portrait mode, error can still be seen.
Error can only be reproduced with small QInputDialog.