[Zope] memory leak in a very simple product. Way?

[Christoph Wierling]

> If your item is subclassing persistent you should expect them to stay in
> the zodb. And then you should not add them to a list in your own
> product, but create a subclass of ObjectManager and use the _setObject()
> method to add the item instances.

This seems to be the solution of my problem !   :-)

Thanks for your help,
christoph