Grouping not overrided

[Risele]

The composite state is not created at grouping.
The shouldGroupWithState() always return false. States grouping happens, but transparent:

Easy fix - just return true. Not sure,is it good or not, but it works.

    shouldGroupWithState(cells) {
        return true;
        for (let index = 0; index < cells.length; index++) {
            const cell = cells[index];
            if (StateSmithModel.hasStateMachineParent(cell))
                return true;
        }
        
        return false;
    }

Checked with draw.io version 26.1.1 at least

[adamfk]

This probably still works with the old style of declaring state machines. See StateSmith/StateSmith#359

I see that I still have a TODO item for this I forgot about. Thanks for the report!