CDI beans with SET replication trigger are not replicating

Please check if the use case is correct:

https://github.com/rhusar/clusterbench/blob/master/clusterbench-ee6-web/src/main/java/org/jboss/test/clusterbench/web/cdi/CdiServlet.java
https://github.com/rhusar/clusterbench/blob/master/clusterbench-ee6-web/src/main/java/org/jboss/test/clusterbench/web/cdi/SessionScopedCdiSerialBean.java

The methods are only called on the CDI-mananged bean, there is no interaction with the HTTP session itself. Should the replication trigger on the bean itself or is anything else required?

https://hudson.qa.jboss.com/hudson/job/eap-6x-failover-http-cdi-shutdown-repl-sync/2/