This is a question for CDI forum.
Conversations are managed manually, so if you do not start it by hand it will not be long running (it will last only a single request).
Thanks for the reply - you are right - it should have been in a CDI forum. I'm still getting across CSI & RF 4.
FWIW I was using a @PostConstruct initialisation method to create a long running conversation. However the conversation needs to exist before the h:form with the ajax enabled components on is rendered as this post explains: http://seamframework.org/Community/ConversationCreatedUntilPOST#comment128279