diff --git a/template/app/view/ThumbList.js b/template/app/view/ThumbList.js
index <HASH>..<HASH> 100644
--- a/template/app/view/ThumbList.js
+++ b/template/app/view/ThumbList.js
@@ -61,8 +61,9 @@ Ext.define('Docs.view.ThumbList', {
                 '</tpl>',
             '</div>'
         ]));
-        // Hide itemTpl config from parent class
+        // Hide itemTpl and data configs from parent class
         this.itemTpl = undefined;
+        this.data = undefined;
 
         this.on({
             'afterrender': function(cmp) {
In ThumbList hide data config from parent class.

In <I> the View class also handles data attribute and things
will crash if we have our own special-purpose data in there.