The Identity Management server does not write the initial user password correctly to password history. As a consequence, when a new Identity Management user is created and a password is generated for him, the first time that user changes the password, the value of the first password is disregarded when the password policy plug-in checks the password history. This means that user can "change" the initial password to the same value as the previous one, with no regards to the configured password history. Password history is applied correctly to all subsequent password changes.