[Freewx-maint] Bug#654990: xrced outputs error when testing interface

[Yuri D'Elia]

Package: python-wxtools
Version: 2.8.12.1-6
Severity: normal

It seems that testing any interface or component in xrced (either by testing
manually or through auto-refresh) yelds this error in a message box:

  error adding XmlHandler "<class 'xh_wxlib.FoldPanelBarXmlHandler'>"

Yet the test interface seems to work normally after dismissing the message.
This is very annoying, since it totally breaks the auto-refresh feature.

To reproduce simply run xrced, add a frame or dialog and press F5.
I was also able to reproduce the problem on a windows build of wxPython.