all document types can get a thumbnail, except files

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26086 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_viewDocumentList/listbox_thumbnail.xml

@@ -140,7 +140,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python:cell.portal_type==\'Image\'</string> </value>
+            <value> <string>python:cell.portal_type != \'File\'</string> </value>
         </item>
       </dictionary>
     </pickle>

product/ERP5/bootstrap/erp5_core/bt/revision

-1122
+1123
\ No newline at end of file