Javatest 4.1.3_b05.

* Create a interview with the custom question class and register a custom question for it. (See 6640353 for details)
* Start the tool with -newDesktop option
* Open TestSuite, Create Working Directory
* Invoke Configure/New COnfiguration
* Find your "customized" question in the Configuration Editor.
It's not actually customized - there is no renderer component for it al all - just an empty JPanel instead. This is a bug.

* Submit Interview, save it.
* Open Editor again by Configuration/Edit Configuration
* Scroll to your customized question - now it's rendered properly.