Fix bug when getting propertysheet.

Fixes bug introduced in b4495eb?diff=unified&w=1#diff-3bb20756c73e7cac2fb14728c89e578aR472
zopefoundation · May 17, 2019 · 0ce0084 · 0ce0084
1 parent e674a05
commit 0ce0084
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/OFS/PropertySheets.py b/src/OFS/PropertySheets.py
@@ -470,7 +470,8 @@ def items(self):
     def get(self, name, default=None):
         for propset in self.__propsets__():
             if propset.id == name or \
-               getattr(propset, 'xml_namespace', None) == name:
+               getattr(propset, 'xml_namespace', None) is not None and \
+               propset.xml_namespace() == name:
                 return propset.__of__(self)
         return default