Authorization Policy: Cannot display realm Role

1. Description:

When creating a realm role Authz policy, the realm role created is not visible within the policy.

This issue is due to a Javascript error

~~~
angular.js:15635 TypeError: Cannot read property 'length' of undefined
    at authz-controller.js:1697
    at I (angular-resource.js:779)
    at angular.js:18013
    at m.$digest (angular.js:19180)
    at m.$apply (angular.js:19568)
    at k (angular.js:13411)
    at v (angular.js:13668)
~~~

2. How to reproduce

step1: 
From a client --> Goto Authorization 

step2: 
Goto Policy and and select "Create Policy Role"

step3: 
Select one of the available Role
Provide a policy Name
Click Save

The issue is that the created policy no longer displays the role used.

3. Analysis:

This error is occurring in the JavaScript of file authz-controller.js at line 1697:

~~~
for (i = 0; i < $scope.clients.length; i++) {
                            if ($scope.clients[i].id == data.containerId) {
                                data.container = {};
                                data.container.name = $scope.clients[i].clientId;
                            }
                        }
~~~~

It is due to the fact the $scope.clients.length can be undefined, thus causing the javascript exception seen here.

4. WorkAround

If you update within the file authz-controller.js the dailing line (1697), replacing it with 

if (($scope !== undefined) && ($scope.clients !== undefined))

The command will succeed.

~~~
 if (($scope !== undefined) && ($scope.clients !== undefined))
                    {
                                    for (i = 0; i < $scope.clients.length; i++) {
                            if ($scope.clients[i].id == data.containerId) {
                                data.container = {};
                                data.container.name = $scope.clients[i].clientId;
                            }
                        }
                    }
                        selectedRoles.push(data);
                        $scope.selectedRoles = angular.copy(selectedRoles);
                    });
                }
            }

~~~