wrong generated classname from xml

I’m using
dhtmlxSuite 2013 Rel.1 (DHTMLX 3.6) Professional edition build 131108

When i write in XML

the following code is generated :

Is this a bug?

Thanks
Jérôme

That issue was fixed.

Please, try to update your dhtmlx version.

Where can i download it ?

If you have a standard version of dhtmlx you can download the new version by the following link:
dhtmlx.com/docs/download.shtml
If you have PRO version, please, visit sales@dhtmlx.com or open ticket at support.dhtmlx.com