fixed bug - selection name was not unique

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@10224 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/Project_viewTask/listbox.xml

@@ -558,7 +558,7 @@
                 </item>
                 <item>
                     <key> <string>selection_name</string> </key>
-                    <value> <string>project_selection</string> </value>
+                    <value> <string>project_task_selection</string> </value>
                 </item>
                 <item>
                     <key> <string>sort</string> </key>