now i would also not expect this to get updated. weird. i fear the course of action would be to create a java code that shows the problem in jackrabbit directly (creating the nodes on the fly) and create a bug at https://issues.apache.org/jira/browse/JCR. 
we have this minimal cli bed https://github.com/jackalope/JavaDavexClient - do you think you can do that? otherwise i will try to find some time next week.