I have to correct myself. I'm not so sure it's a bug anymore. See also https://issues.jboss.org/browse/WELD-2110?focusedCommentId=13166714&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13166714 and http://lists.jboss.org/pipermail/cdi-dev/2016-February/007785.html.