clicking a radio button will not uncheck others in the same group

[andrewpmckenzie]

see jsdom/jsdom#271

[andrewpmckenzie]

Using jQuery:

it('toggles radio buttons', function(){

    expect( $('input:checked').attr('id') ).toEqual( 'radio_1' ); // PASS

    $('#radio_2').trigger('click');

    expect( $('#radio_2').is(':checked') ).toBeTruthy(); // PASS
    expect( $('input:checked').attr('id') ).toEqual( 'radio_2' ); // FAIL - returns 'radio_1'

});