slapos_payzen: new id generator per node is used

master/bt5/slapos_payzen/SkinTemplateItem/portal_skins/slapos_payzen/PaymentTransaction_getPayzenId.py

@@ -7,7 +7,10 @@ integration_site = portal.restrictedTraverse(portal.portal_preferences.getPrefer
 
 payzen_id = integration_site.getCategoryFromMapping('Causality/%s' % context.getId().replace('-', '_'))
 if payzen_id != 'causality/%s' % context.getId().replace('-', '_'):
+  # ok when using per day generator
   date, payzen_id = payzen_id.split('_', 1)
+  # and then switched to per day / per node generator
+  date = date.split('.', 1)[0]
   return DateTime(date).toZone('UTC'), payzen_id
 else:
   return None, None