Don't use getattr to access subobjects on an acquisiton-wrapped object.

If some looked-up id is missing, it would be searched in acquisition, which is
not desired.
If some looked-up id exists as a method id on container's class, it will be
fetched instead of a subobject, which is not desired.

Example case, which happened to me: searching for "Title" returns an accessor
from CMF.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@44185 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/dynamic/accessor_holder.py

@@ -300,8 +300,10 @@ def getPropertySheetValueList(site, property_sheet_name_set):
 
   for property_sheet_name in property_sheet_name_set:
     try:
-      property_sheet = getattr(property_sheet_tool, property_sheet_name)
-    except AttributeError:
+      property_sheet = property_sheet_tool._getOb(property_sheet_name)
+    except (AttributeError, KeyError):
+      # XXX: OFS.Folder explicitly raises AttributeError, BTreeFolder2
+      # implicitly raises KeyError...
       LOG("ERP5Type.dynamic", WARNING,
           "Ignoring missing Property Sheet " + property_sheet_name)