Workaround for fixing node type attribute issue

...af/oats/vospace/datamodel/RemoveDuplicateTypeAdapter.java

src/main/java/net/ivoa/xml/vospace/v2/ContainerNode.java

src/main/java/net/ivoa/xml/vospace/v2/Node.java

src/test/java/net/ivoa/xml/vospace/v2/NodeTest.java