Shift button on virtual keyboard is disabled on startup of application

When focus is initially set on TextField from the start of application, shift key on virtual keyboard will be disabled until user clicks on TextField.

I have looked into the issue, it seems like the problem is that in QGuiApplicationPrivate::processActivatedEvent.

1. First we call:
   QCoreApplication::sendSpontaneousEvent(QGuiApplicationPrivate::focus_window, &focusIn),
2. sendSpontaneousEvent will trigger ShiftHandler::reset(), that will try to get d->inputContext->priv()->inputItem() - which is currently focused item. And currently focused item is currently null and will be set only later(see below).
3. And after ShiftHandler::reset(which fail to update inputMethodHints) in QGuiApplicationPrivate::processActivatedEvent we call
   self->_q_updateFocusObject(qApp->focusObject());
   This line actually sets currently focused item, but there will be no call to ShiftHandler::reset() later to observe this change.
    
   I have attached a repoduction.

Is there any workaround for this issue?