[Zope] KeyError in ZCatalog search

[Oliver Frommel]

> 
> I'd like to help, but this is a pretty complex query.  I'd like to be able
> to narrow this down to a single query.  Assmuming resd is the problem, can
> you try the search:
> 
> Catalog(authorname=begriff)
> 
> (whatever 'begriff' is when the concated searches happen) and tell me the
> results.
>

I tried what you suggested, and this search works (no data matching the query,
but no error message). So I guess resd is not the problematic subsearch.
However I understand what procedure to use for narrowing down the problem and
will try to investigate this further. 

thanks so far
--Oliver