Description of problem:
Unexpected feature: gconf-editor has the ability to corrupt its own
tree model.

Version-Release number of selected component (if applicable):
2.6.0

How reproducible:
Always

Steps to Reproduce:
1. Open gconf-editor.
2. Expand the /desktop/gnome node.
3. Collapse the /desktop node.
4. Expand the /desktop node. Notice that most of the nodes disappear.
5. Collapse the /desktop node.
6. Expand the /desktop node. Segfault.

  
Actual results:
Segfault.

Expected results:
Normal operation.

Additional info:
There seem to be variants of this bug. I'll do more testing and report
others as necessary.