Cannot retrieve public key from Active Directory in IPA clients with sss_ssh_authorizedkeys

Issue

1. Set up ssh public key for Active Directory users and store it in attribute altSecurityIdentities in Active Directory.

2. Public key from Active Directory can not be retrieved in IPA client with sss_ssh_authorizedkeys command:

[root@ipaclient ~]# sss_ssh_authorizedkeys aduser@ad.example.com -d ad.example.com
<<<no pub_ssh key returned>>>