Improved text description

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@17514 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/EmailDocument.py

@@ -321,7 +321,8 @@ class EmailDocument(File, TextDocument):
   def hasBaseData(self):
     """
       Since there is no need to convert to a base format, we consider that 
-      we always have the base format if we have text of file.
+      we always have the base format data if and only is we have
+      some text defined or a file.
     """
     return self.hasFile() or self.hasTextContent()