diff --git a/product/ERP5Form/ListBox.py b/product/ERP5Form/ListBox.py index abf713e26cae16b9f23c719a97ab8b35787431dc..0577a5acfd60204bb3a66b9c7d05253d7030aec3 100644 --- a/product/ERP5Form/ListBox.py +++ b/product/ERP5Form/ListBox.py @@ -100,7 +100,7 @@ class CatalogMethodWrapper(MethodWrapper): # It is probably needed at a more generic level (Forms ? Selection ?), or # even a more specific one (limited to HTML ?)... for key, value in kw.items(): - if value == '': + if value == '' or value is None: kw.pop(key) return getattr(self.context, self.method_name)(*args, **kw)