[PS] Inconsistent behavior when creating a new user

Stable OpenERP version 6.0.2,
Windows XP

* Administration > Users > Users, create a new user

Obtained result(s) :
                             - No password required if we provide a login
                             - Password cleared when saving the user
                             - Inconsistent "Change Password" label while encoding the user for the first time !

Expected result :
                             - A password must be required if a login is defined
                             - Password must appear but encrypted (otherwise it is disturbing for the user who does not know if he enters it well)
                             - The label must be "Set password" instead of "Change Password"

reported by dha, OpenERP Prof Serv.