diff --git a/product/ERP5Type/XMLMatrix.py b/product/ERP5Type/XMLMatrix.py index 8984088ee351f4f773150f1af131001672cb41c6..60ee7831d482a43252ba691d36cbd6be59c60df6 100755 --- a/product/ERP5Type/XMLMatrix.py +++ b/product/ERP5Type/XMLMatrix.py @@ -167,7 +167,7 @@ class XMLMatrix(Folder): new_index = PersistentMapping() # new_index defines the relation between keys # and ids of cells - if not hasattr(self, 'index'): + if not hasattr(aq_base(self), 'index'): self.index = PersistentMapping() # Return if previous range is the same