Show email as fallback when a user has no username yet

webadmin/src/views/apps.js

@@ -443,6 +443,9 @@ angular.module('Application').controller('AppsController', ['$scope', '$location
                 return $timeout(fetchUsers, 5000);
             }
 
+            // ensure we have something to work with in the access restriction dropdowns
+            users.forEach(function (user) { user.display = user.username || user.email; });
+
             $scope.users = users;
         });
     }