Win: Rendering of Radio Button and click behavior with Html forms are not correct

Radio buttons is not rendered with html forms and some times hovering mouse over a radio button clicks it and more than one radio button in a group can be checked at once.

Attached example reproduces the problem one windows7. It seems more of styling issue because same example works good with fusion style.

QTBUG-30072 looks similar but that fix (i.e. running with 5.3.1)has no effect on this example.