[Zope] Version 2.1.6: Change in namespace handling

Hi! First of all I've to say that I'm a realy beginner in Zope. I recently updated from 2.1.3 to 2.1.6 and noticed following problems: In 2.1.3 <dtml-with "SAClass.createInObjectManager(REQUEST['fach'], REQUEST)"> <dtml-in "getSubjectInfo(fach=REQUEST['fach'])"> <dtml-call "propertysheets.Basic.manage_changeProperties(title=fachbez, empf_sem=empf_sem,diplompruefungsfach=diplfach)"> </dtml-in> </dtml-with> works great In 2.1.6 it produces an Error message that title, empf_sem, diplompruefungsfach is not known by the system (I already Posted that) Now I found out that <dtml-call "SAClass.createInObjectManager(REQUEST['fach'], REQUEST)"> <dtml-in "getSubjectInfo(fach=REQUEST['fach'])"> <dtml-call "_.getitem(REQUEST['fach'],1).propertysheets.Basic.manage_changeProperties(title=fachbez, empf_sem=empf_sem,diplompruefungsfach=diplfach)"> </dtml-in> works fine in 2.1.6. (getSubjectInfo is a SQL Method) Has someone a hint for me? Helmut.