When cloning a draggable object in jQuery UI, how can you transfer the data and events to the new element?

I have a draggable element with the helper: 'clone' set, but when it clones the element, none of the data() or events are persistent in the new element.

I've tried a number of ways to reattach the data(), but I can't seem to select the new element as well as the old element in the same statement.

For instance, I can select the initial element in the draggable stop() event:

$blah.draggable({
    helper: 'clone',
    stop: function(ev, ui) {
        var oldData = $(ev.target).data('blah');
    }
});

And I can also get the new element in the droppable drop() event:

$blah.droppable({
    drop : function(ev, ui) {
        var $newElement = ui.draggable;
    }
});

But I can't figure out a way to get both in the same event.

What I'd like to do is somehow transfer the data, e.g.:

$newElement.data('blah', $oldElement.data('blah'));

Or otherwise make the data persistent, like you can with $blah.clone(true);