[Zope] Bug in External Methods?

[Itamar Shtull-Trauring]

I am creating a new ZClass, that has two external methods.  I want them to
have their own permission, so I create a permission in the Product that
includes the ZClass.  I now try to change the permissions on an external
method (which is called manage_first), so that View permission is mapped to
the new permission I created.  I get an error - and I get the same error no
matter what I try to map View to.

http://localhost:8080/Control_Panel/Products/OrderedFolder/OrderedFolderClass/propertysheets/methods/manage_first/manage_setPermissionMapping
gives me:

Zope has encountered an error while publishing this resource. 

             Error Type: KeyError
             Error Value: ZopeTime
...
...
...

Traceback (innermost last):
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/ZPublisher/Publish.py, line
214, in publish_module
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/ZPublisher/Publish.py, line
179, in publish
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/Zope/__init__.py, line 201,
in zpublisher_exception_hook
    (Object: manage_first)
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/ZPublisher/Publish.py, line
165, in publish
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/ZPublisher/mapply.py, line
160, in mapply
    (Object: manage_setPermissionMapping)
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/ZPublisher/Publish.py, line
102, in call_object
    (Object: manage_setPermissionMapping)
  File
/itamar/Zope-2.0.1-linux2-x86/lib/python/AccessControl/PermissionMapping.py,
line 149, in manage_setPermissionMapping
    (Object: manage_first)
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/AccessControl/Role.py, line
229, in manage_access
    (Object: manage_first)
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/App/special_dtml.py, line
120, in __call__
    (Object: methodAccess)
    (Info:
/itamar/Zope-2.0.1-linux2-x86/lib/python/AccessControl/methodAccess.dtml)
  File
/itamar/Zope-2.0.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line
502, in __call__
    (Object: methodAccess)
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/App/special_dtml.py, line
120, in __call__
    (Object: manage_tabs)
    (Info: /itamar/Zope-2.0.1-linux2-x86/lib/python/App/manage_tabs.dtml)
  File
/itamar/Zope-2.0.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line
502, in __call__
    (Object: manage_tabs)
  File /itamar/Zope-2.0.1-linux2-x86/lib/python/DocumentTemplate/DT_With.py,
line 148, in render
    (Object: _(manage_options=filtered_manage_options()))
KeyError: (see above)