Allow element tags to be reused in element contents
Allow element tags to be reused in element contents

tomalrussell/smif,nismod/smif,willu47/smif,nismod/smif,willu47/smif,nismod/smif,tomalrussell/smif,willu47/smif,nismod/smif,tomalrussell/smif,tomalrussell/smif,willu47/smif