Check if urls is null

Check if node.urls is null and set scope.currentUrls to null and return

src/Umbraco.Web.UI.Client/src/common/directives/components/content/umbcontentnodeinfo.directive.js

@@ -313,7 +313,7 @@
 
             function updateCurrentUrls() {
                 // never show URLs for element types (if they happen to have been created in the content tree)
-                if (scope.node.isElement) {
+                if (scope.node.isElement || scope.node.urls === null) {
                     scope.currentUrls = null;
                     return;
                 }