static void web_copyRelations(WebNode src, WebNode dest) { if (src == dest) ret; Web web = src.web; assertSame(web, dest.web); for (Pair p : cloneList(keys(web.relations))) { if (p.a == src) web.getRelation(dest, p.b).addLabels(web.getRelation(p).labels); if (p.b == src) web.getRelation(p.a, dest).addLabels(web.getRelation(p).labels); } }