Show email as fallback when a user has no username yet

webadmin/src/views/apps.html

@@ -83,7 +83,7 @@
                                 <div style="margin-left: 20px;">
                                     <div class="col-md-5">
                                         Users:
-                                        <multiselect class="input-sm stretch" ng-model="appConfigure.accessRestriction.users" ng-disabled="appConfigure.accessRestrictionOption !== 'groups'" options="user.username for user in users" data-multiple="true"></multiselect>
+                                        <multiselect class="input-sm stretch" ng-model="appConfigure.accessRestriction.users" ng-disabled="appConfigure.accessRestrictionOption !== 'groups'" options="user.display for user in users" data-multiple="true"></multiselect>
                                     </div>
 
                                     <div class="col-md-5">

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;
         });
     }