[Zope] Five 1.5.5 and menuItem - problem with 'filter' parameter

[Pawel Lewicki]

Hi,
Am I doing anything wrong or filter parameter of browser:menuItem is 
just ignored?
I have that problem in Plone but I suspect CMF ActionsTool if not Five 
itself.

   <browser:menuItem
       for="Products.Archetypes.interfaces.IBaseObject"
       menu="object"
       title="synchronize"
       action="synchronizeObject"
       permission="cmf.ModifyPortalContent"
       filter="string: object/whatever"
       />

I tried "whatever" Python Script, registered page view, etc. No success.

Pawel