[Zope] Strange behavior in folderish class

[Daniel Talas]

Howdy -

I have a python product, with a simple class MyClass derived from Folder.  It has a simple
method myMethod with the following code:

def myMethod(self):
    return self.id


I have several nested instances of myClass on my site, but here is a
simplest case:

myClassInstanceA
   |
   |__myClassInstanceB


I also have a simple template (zpt), with the following code:

<span tal:content="here/myMethod"/>

Here is the problem:  when I go to
http://mysite/myClassInstanceA/myClassInstaceB, the output of my zpt
is always 'myClassInstanceA', where I would expect it to be
'myClassInstanceB'.  What am I missing?  Do I need to do more than
just inherit from Folder class?  Do I need anything special in my
__init__ method?

Thanks,
Daniel.