slapos_subscription_request: Set proper dates in order to select the proper Trade Condition

master/bt5/slapos_subscription_request/SkinTemplateItem/portal_skins/slapos_subscription_request/SubscriptionRequest_createRelatedSaleInvoiceTransaction.py

@@ -28,6 +28,9 @@ if current_invoice is None:
         stop_date=payment_transaction.getStopDate(),
       )
 
+  current_invoice["1"].edit(
+        start_date=payment_transaction.getStartDate(),
+        stop_date=payment_transaction.getStopDate())
   if service_variation is not None:
     current_invoice["1"].setVariation(service_variation)
   

master/bt5/slapos_subscription_request/SkinTemplateItem/portal_skins/slapos_subscription_request/SubscriptionRequest_requestPaymentTransaction.py

@@ -33,7 +33,9 @@ if current_invoice is None:
     tax = 0
   else:
     invoice_line = invoice_template["1"].asContext(
-      destination_section=context.getDestinationSection()
+      destination_section=context.getDestinationSection(),
+      start_date=DateTime(),
+      stop_date=DateTime()
     )
 
     subscription_trade_condition = portal.portal_preferences.getPreferredAggregatedSubscriptionSaleTradeCondition()