[Zope] Acquisition loops and web robots

I have run into several cases where authors at our site have accidentally employed acquisition to link documents in such a way that an infinite tree of URLS are possible - for example: /a/foo contains a link to "b/bar" /b/bar contains a link to "a/foo" This really causes a problem with our web indexer (htdig) hits the site and indexes pages like: /a/b/a/b/a/b/a/b/a/b/a/b ... a/foo Has anyone found a way to avoid these sort of problems - other then just not indexing zope sites? I already limit htdig with the max_hop_count setting, but that it tricky to tune correctly (and still index all valid files). Martin --- Martin Andrews mandrews@netgenics.com