I just went through the Generic Setup upgrade steps code.
I am surprised that `manage_doUpgrades` method of the tool does not
check if the step is applicable : AFAICS the `isProposed` method is only
used by the ZPT UI.
I would suggest that `doStep` method of `upgradeStep` class should check
applicability or at least that the tool should check before running the
Godefroid Chapelle (aka __gotcha) http://bubblenet.be
Zope-CMF maillist - Zope-CMF@zope.org
See https://bugs.launchpad.net/zope-cmf/ for bug reports and feature requests