Created: Sun Mar 16 09:43:07 2008
Requestors: Stefan Hornburg
unique is available in Interchange versions:
5.4.0, 5.5.2 (cvs-head)
For example, unique order check is part of Order.pm way before 5.4.0
release. It should be possible to override manually, this will also
allow to solve a bunch of other errors reported.