Used 'nav' request param instead of session for storing info about the initiator of an object creation.

gen/plone25/wrappers/ToolWrapper.py

@@ -31,8 +31,9 @@ class ToolWrapper(AbstractWrapper):
         '''Retrieves the object that triggered the creation of the object
            being currently created (if any).'''
         res = None
-        initiatorUid = self.session['initiator']
-        if initiatorUid:
+        rq = self.o.REQUEST
+        if rq.get('nav', ''):
+            initiatorUid = rq['nav'].split('.')[1]
             res = self.o.uid_catalog(UID=initiatorUid)[0].getObject().appy()
         return res