QWebView & QGraphicsWebView: First keypress is missed when changing focus on Split view with alphanumeric virtual keyboard

Preconditions:

QWebView or QGraphicsWebView includes url input box and some HTLM content. View is on portrait mode.

• tested with pvkb-test application:

• select 'Web' or 'GWeb' button (on 'GWeb' scrollbars can be on or off)
• select e.g. 'Big Textarea (100*300) Edit' on 'GWeb' or 'Web'
• virtual keyboard is on alphanumeric mode

Test steps:
1. Tap somewhere on text area
--> split view is opened with alphanumeric virtual keyboard.
2. Type some text.
--> text is visible on focused line.
3. Change the focused line on split view and type some text.

Expected result:
Focused line is changed and typed text is visible on focused line.

Actual result:
Focused line is not changed. User must change the focus again (i.e. first keypress is missed) until it actually changes.
Error cannot be reproduced with qwerty virtual keyboard.