Split off from MAGNOLIA-3457.

If I have the config loaded and rename a property, the module is reloaded but the property is still there with all old values. I think it should be null.

Renaming property.

2010-12-08 12:21:25,599 INFO AdminTreeMVCHandler.renameNode(564)
Moving node from /modules/kokaihop/config/properties to /modules/kokaihop/config/properties2
2010-12-08 12:21:30,609 INFO ModuleManagerImpl.stopModule(388)
Stopping module kokaihop
2010-12-08 12:21:30,609 INFO KokaihopModule.stop(60)
module stop, during restart
2010-12-08 12:21:30,610 INFO ModuleManagerImpl.startModule(380)
Starting module kokaihop
2010-12-08 12:21:30,610 INFO KokaihopModule.start(49)
module start, during restart

Module restarted but property is still intact.