slapos_erp5: is an Invitation Token a ticket?

master/bt5/slapos_erp5/PortalTypeTemplateItem/portal_types/Invitation%20Token.xml

@@ -42,9 +42,15 @@
             <key> <string>portal_type</string> </key>
             <value> <string>Base Type</string> </value>
         </item>
+        <item>
+            <key> <string>short_title</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
         <item>
             <key> <string>type_class</string> </key>
-            <value> <string>XMLObject</string> </value>
+            <value> <string>Ticket</string> </value>
         </item>
         <item>
             <key> <string>type_interface</string> </key>