Refresh list after adding an item with jQuery UI sortable plugin

Alright so I have a nested sortable list, each item is therefore both a container and a sortable element.

The problem I am facing is that, whenever I add a new element, I want jQuery to refresh its internal state with the new item. According to the documentation, one has to call the sortable method passing as parameter 'refresh', but still I can't make it work.

Sample code: http://jsfiddle.net/X5sBm/

JavaScript:

$(document).ready(function() {
    var list = $('#mycontainer ul').sortable({
        connectWith: '#mycontainer ul',
        placeholder: 'myplaceholder'
    });

    function addElement(text) {
        $('#mycontainer > ul').append('<li>' + text + '<ul></ul></li>');
        list.sortable('refresh');
    }

    addElement('yolo');
});

HTML:

<div id="mycontainer">
    <ul>
        <li>
            Some text
            <ul>
            </ul>
        </li>
        <li>
            Some text 2
            <ul>
            </ul>
        </li>
    </ul>
</div>

CSS:

#mycontainer > ul {
    display: block;
}

#mycontainer > ul ul {
    min-height: 10px;
    padding-left: 20px;
}

.myplaceholder {
    background-color: yellow;
}

Try to drag one pre existing item under the newly added one, you won't be able to do so even after the refresh.

Answers:

Answer

I found a cheap fix:

I call sortable again on the same tag reinitialising the Sortable plugin like so:

$('#mycontainer ul').sortable({
    connectWith: '#mycontainer ul',
    placeholder: 'myplaceholder'
});

and it works.

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