[Zope] document_src permissions error

[Courtland Idstrom]

Hi -

I'm using Zope 2.5.1 with Python 2.1.1 under Linux 2.4.18 and I'm having 
  the following problem:

I have a search engine built using ZCatalog which summarizes the 
documents sort of like google does when it outputs them to the user. The 
only problem is that I'm having problems with the document_src() not 
doing the permissions correctly. I have enclosed the summarize area with:

getSecurityManager().getUser().has_permission('View management screens', 
object):
and also tried

getSecurityManager().checkPermissions('View management screens', object):

For users that do not have access to some of the documents, they are 
correctly denied access and the summary doesn't print. The strange error 
appears when I try to search for the same thing from a user which can 
view the source for that document (I checked using the management 
interface). It gives a "unable to access document_src() in this 
context". For now I'm just doing the document_src() in an external 
method (which also does the summary), but I believe this to be a bug.

Thanks
-Courtland