I added a comment in that JIRA:
https://issues.jboss.org/browse/AS7-4673?focusedCommentId=12740399&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12740399
I think (as I mention in another comment in there) that this is related to https://issues.jboss.org/browse/AS7-5336
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