Copy classes from legend for controlgroup label

[aristotelos]

When a controlgroup is created from a input radio set, the <legend> element of the <fieldset> is converted to a <div>. However, its classes are not copied.

A simple edit to the code can make this working:

if ( grouplegend.length ) {
        // Replace legend with more stylable replacement div
        $( "<div role='heading' class='ui-controlgroup-label'>" + grouplegend.html() + "</div>" ).insertBefore( $el.children( 0 ) ).addClass(grouplegend.attr('class'));
        grouplegend.remove();

[jaspermdegroot]

@aristotelos

Thanks for reporting the issue. I agree we have to look at porting classes over to the enhanced elements in cases like this. There is an open ticket for this: #3577.

I am closing this ticket as duplicate and will comment there that we also have to look at checkbox/radio controlgroups.