data not loaded from markup from FancyTree

[ptitpix]

Hello.
It seems that FancyTreenode.data are filled by data-* attributes on provided LI but Fancytree.data is never filled with data-* found on the widget DIV.
I patched my own version at line 1619 with :

this.data = $.extend({}, this.$div.data());  

in place of

this.data = {}

It works for me but i'm not sure it's the right place to fix it or if I missed the point.