We are having a NullPointerException in /libs/cq/tagging/gui/components/tagedit/languagepicker/render.jsp because the property "languages" is missing in /etc/tags.
We are not able to add the property (tried crxde and curl) because of the node type, getting: javax.jcr.nodetype.ConstraintViolationException: No matching property definition: languages = [en]