[FIXED] [4.1rc1] Ext.widget reports config is undefined

REQUIRED INFORMATION

Ext version tested:

Ext 4.1-rc1 (nightly build 2012-03-03)
Browser versions tested against:

IE7/9
FF10.0.2
DOCTYPE tested against:

<!DOCTYPE html>
Description:

It seems that there ist a problem with Ext.widget functionality. If you try to get an instance of a widget, you get a "config is undefined" JS error.
Steps to reproduce the problem:

Get an instance of a User defined widget (e.g. User window).

Test Case:

If I call

Code:

var myWindow = Ext.widget('userkontrolleupload')

without config, a script error appears saying config is undefined.

If I call

Code:

var myWindow = Ext.widget('userkontrolleupload', {})

no script error appears. Everything ok.