[Zope] Cut support

Heres a wierd one: I have a class inherited off of DTMLDocument. The object's I create from can be happily copied, deleted, renamed and pasted in pretty much any order. But when I do a cut then paste I get an error message relating to ac_acquire I guess trying to get hold of the absolute_url (for cataloging purposes). I assumed a cut and paste would be a copy, delete, paste in that order. Put in would appear not to be, since I can do that by hand. Thanks in advance.