Allow to call the diverge transition in diverged state.

It should allow to get more conflict in case of concurrent transaction.

master/bt5/slapos_accounting/WorkflowTemplateItem/portal_workflow/slapos_api_invoicing_workflow/states/diverged.xml

@@ -23,6 +23,7 @@
             <value>
               <tuple>
                 <string>converge</string>
+                <string>diverge</string>
               </tuple>
             </value>
         </item>

master/bt5/slapos_accounting/bt/revision

-253
\ No newline at end of file
+254
\ No newline at end of file