Use None as default value.

Default value should be None or of a type consistent with property definition.
In this case, None is useful to disable auto-logout on user inactivity, so use
it.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@45681 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/Preference/preferred_max_user_inactivity_duration_property.xml

@@ -53,7 +53,9 @@
         </item>
         <item>
             <key> <string>property_default</string> </key>
-            <value> <string>python: \'\'</string> </value>
+            <value>
+              <none/>
+            </value>
         </item>
       </dictionary>
     </pickle>

product/ERP5/bootstrap/erp5_property_sheets/bt/revision

-26
\ No newline at end of file
+27