[Zope] find ZClasses instances

[Godefroid Chapelle]

Hi, I get to a setup where ZClasses could still be used : one ZClass is 
installed in one of the product.

I need to find out if there are any instance of the ZClass in the ZODB 
in order to migrate them to sthing saner.

I have tried to use the manage_findResult method, passing it the ZClass 
name as meta_type. I got no result. But I am not sure the ZClass name is 
its meta_type.

Any hint how to find out if there are instances of a specific ZClass in 
a ZODB ?

Thanks	
-- 
Godefroid Chapelle (aka __gotcha)- BubbleNet  http://bubblenet.be