slapos_subscription_request: use source_project instead of follow_up

master/bt5/slapos_subscription_request/TestTemplateItem/portal_components/test.erp5.testSlapOSSubscriptionScenario.py

@@ -255,7 +255,7 @@ return dict(vads_url_already_registered="%s/already_registered" % (payment_trans
       text_content='<?xml version="1.0" encoding="utf-8"?>\n<instance>\n</instance>',
       user_input={},
       specialise_value=sale_trade_condition,
-      follow_up_value=self.subscription_project
+      source_project_value=self.subscription_project
     )
     subscription_condition.validate()
     self.tic()
@@ -271,7 +271,7 @@ return dict(vads_url_already_registered="%s/already_registered" % (payment_trans
       price_currency="currency_module/EUR",
       payment_mode='payzen',
       specialise="sale_trade_condition_module/slapos_subscription_trade_condition",
-      #follow_up_value=self.subscription_project
+      source_project_value=self.subscription_project
     )
     # XXX TODO clarify the with / without tax
     sale_trade_condition.newContent(
@@ -300,7 +300,7 @@ return dict(vads_url_already_registered="%s/already_registered" % (payment_trans
       text_content='<?xml version="1.0" encoding="utf-8"?>\n<instance>\n</instance>',
       user_input={},
       specialise_value=sale_trade_condition,
-      follow_up_value=self.subscription_project
+      source_project_value=self.subscription_project
     )
     self.subscription_condition.validate()
     self.tic()