QWidget with QWebView: typing is not possible after orientation change

Preconditions:

QWidget includes a QWebView with url input box and some HTML content. View is on portrait orientation.

• tested with pvkb-addressbook test application: select 'Web' button (but not any link on the page!) and tap the url input box on top of the screen --> split view is open on portrait mode.

Test steps:
1. Type some text to url input box.
2. Switch orientation to landscape mode.
--> split view is open on landcape.
3. Continue typing.

Expected result:
Typed text is visible on split view.

Actual result:
Cursor does not move on url input box and typed text cannot be seen.
Note: if split view is closed and opened again (as focus is on url input box) - typed text is still not visible.