this by class binding for root item

static/nb.js

@@ -91,7 +91,7 @@ function nbInit(a,b){
         nBind(function (item, $s, selector, value, key, thisByClass){
             value = typeof value === 'undefined' ? $s[selector] : value;
             var keyExists = typeof key !== 'undefined';
-            if ((!item.children.length && !Array.isArray(value) && typeof value === 'object') || thisByClass){ //hash array on single leaf node -> set attrs on the tag
+            if ((!item.children.length && !Array.isArray(value) && typeof value === 'object') || thisByClass && value){ //hash array on single leaf node -> set attrs on the tag
                 recursiveObjectSet(item,value);
                 //for (var key in value){
                     //item[key] = value[key];