[ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Security

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A comment to the paragraph below was recently added via http://zope.org/Documentation/Books/ZDG/current/Security.stx#3-67

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      The 'setPermissionDefault' method of the 'SecurityInfo' 
      object should be called only once for any given permission 
      name. 

        % Anonymous User - Oct. 21, 2003 6:20 am:
         SecurityInfo object should be called only once for any given permission name: 
                 is that once per object ie many times if there are several classes is a product, or once per product?