[Zope-CMF] PersistentComponents: wrapped or not?

[yuppie]

Hi!


Apparently I'm missing something because this doesn't make much sense to me:


ComponentRegistryXMLAdapterTests use 
z.c.persistentregistry.PersistentComponents. These tests register 
wrapped tools, the registry returns them with their original wrapper.

If I add transaction.commit(), I get a TypeError: "Can't pickle objects 
in acquisition wrappers."

This is what I'd expect.


But:

Importing componentregistry.xml in CMF, wrapped tools are registered as 
well. No error in that case, but unless re-wrapped by 
five.localsitemanager's PersistentComponents, the registry returns 
unwrapped tools.


Any idea what's different in the second case? Why does registerUtility() 
work in that case, removing the wrapper without raising an error?


TIA,

	Yuppie