Don't try to validate fields from hidden group.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@10141 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/Form.py

@@ -405,7 +405,10 @@ class ERP5Form(ZMIForm, ZopePageTemplate):
 #        import pdb; pdb.set_trace()
         result = {}
         errors = []
-        for field in self.get_fields():
+        for group in self.get_groups():
+            if group.lower() == 'hidden':
+                continue
+            for field in self.get_fields_in_group(group):
                 # skip any field we don't need to validate
                 if not field.need_validate(REQUEST):
                     continue