The displayer for the "List of users" property suggests disabled users

Steps to reproduce :

• Start a new wiki
• Create some users in your wiki, and make sure that at least one of these users is marked as disabled
• Create a new AWM that includes a list of users in its structure. We do an AWM because it generates automatically the sheet, the template, etc … linked to the data structure. In practice, this issue is not linked to AWM itself.
• Create a new page for this AWM, and try to add a user in the list of users. Notice that even the disabled users are listed in the displayer of the list of users

In practice, a user could expect to see only users that are active on its wiki, as inactive users will refer to users that :

• Either never validated their account
• Or have been purposely disabled by the administrator (eg : an employee leaving the company)