Christoph Berendes wrote at 2005-10-24 11:03 -0400:

... Question: this wouldn't be the case for a Zope or Plone folder. If I rename a folder from 'old_folder_name' to 'new_folder_name', it appears that the folder has no "memory" of old_folder_name. However, it appears that a mount point "remembers" where it was created. Isn't that in some sense a bug?

The problem: The "id" is maintained in 2 places: the container (to access the respective child) and the object itself (used for URL construction). When you rename an object, the id is changed in both places. However, mounting is not considered to change the mounted object. Therefore, it does not change the id. More importantly, mounting is at a much lower level (the ZODB) than the application which knows about ids (Zope). In principle, you can mount objects that do not have an "id" and if it has an id, it might be set in different ways not known be the mounting code. Thus, when you mount Zope objects, you have to observe the restriction (or get wrongly constructed urls). -- Dieter