Added legacy business template. It is required since r43337.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@43426 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/tests/testERP5Commerce.py

@@ -99,7 +99,8 @@ class TestCommerce(ERP5TypeTestCase):
     """
       Return the list of required business templates.
     """
-    return ('erp5_base',
+    return ('erp5_core_proxy_field_legacy',
+            'erp5_base',
             'erp5_web',
             'erp5_pdm',
             'erp5_simulation',