[xwiki-users] Users created through admin options have dual authentication when LDAP is on

Hi, I added my LDAP users to Xwiki manually one by one through the Xwiki Administration form, I did that so I can add them to their corresponding groups so they have their correct user rights since their first login. When creating a new user through the form, the password is mandatory, so I copy/pasted the user in the password field (e.g.: user jsmith and password jsmith as well). Then when I asked the user to login, she could login correctly, but then I thought maybe I should try to login using the password I set on the form, and oh surprise, it logged in too!, is this the correct behavior or did I do something wrong here? I need users to login only when entering their ldap password, not their xwiki password. Thanks in advance. JC