I'm modifying Monticello to store Namespaced packages to a .mcz file. 
However, I've come across a problem I've never seen before:

MessageNotUnderstood: 
AnObsoleteMCNamespacedStWriter>>visitNamespaceDefinition:

Where did that "AnObsolete" part come from, and why isn't my class 
(MCNamespacedStWriter) being used now that I've fixed the DNU? Is this 
something peculiar to Squeak, or is Monticello doing some wacky 
reflection on its own classes?

Michael.