fixup! standard_error_message: Adjust exception context for Zope 4

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/standard_error_message.py

@@ -6,10 +6,9 @@
 """
 from zExceptions import Unauthorized
 
-# Adjust exception context for Zope 4.
-context = container.REQUEST.get('PARENTS', [context])[0]
-
 try:
+  # Adjust exception context for Zope 4.
+  context = container.REQUEST.get('PARENTS', [context])[0]
   return context.standard_error_message_template(*args, **kw)
 except Unauthorized:
   pass