Roles without a folder or a permission should be handled correctly

Current Situation

• When a Role has neither Folders nor Permissions but is assigned to a User then this Role will be added to the [ users ] section of the shiro.ini file. The Role will be shown correctly in the Accounts tab and the POST read method shows the users:Object:Roles[ 0 ] object correctly. However, the Role will not be shown in the Masters tab when the Account is selected as it is not added to the [ roles ] section of the shiro.ini file.

Desired Behaviour

• roles that are assigned to a user should be listet in the Master tab even if the role does not have a permission or a folder.
• to enable this, the answer of security_configuration/read will list empty roles