Backport to 11.1: Fields on change password screen should be empty after failed attempt

When changing the password, it can happen that the new password does not follow the password rules, eg it is less than a minimum length of eg 8 characters. The dialog then shows the message that the password is not correct, however only the input field for the old password is emptied. The user then can wrongly assume it was the old password that was not correct.

The content in the fields for the new password is maintained but this is useless because it ws wrong, and not readable anyway.

The better solution would be to empty all 3 fields in the dialog.

This problem exists in Hippo 7.9, 10 and 11