slapos_subscription_request: ensure Subscription Request is consistent

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

@@ -118,10 +118,9 @@ subscription_request = portal.subscription_request_module.newContent(
   price=price,
   # XXX activate_kw=activate_kw
 )
-"""
 if len(subscription_request.checkConsistency()) != 0:
-  raise NotImplementedError(subscription_request.checkConsistency())
-"""
+  raise AssertionError(subscription_request.checkConsistency())
+
 subscription_request.submit()
 
 return subscription_request