[Zope] skip_unauthorized not working in dtml-in

[Kevin Worth]

Zope 2.4.3, Mac OS X.

This code:
<dtml-in expr="PARENTS[0].objectValues(['Folder', 'RSTX_Document', 
'DTML Document', 'STX Document'])" skip_unauthorized=1 sort=id>
<a href="&dtml-absolute_url;/"><dtml-var title_or_id></a>
</dtml-in>

Does not work in my setup.  I know the permissions are fine, because 
skip_unauthorized is working as expected in a dtml-tree for the same 
objects.

The Zope Book mentions another way of doing it -by assigning a 
property for those items to appear in the list and checking to see if 
it is true - but that doesn't work well for me because the 
public/private nature of many items will change often based on the 
time of year.

thanks

Kevin