[ipa/server] Try to fix the deployment errors
    
    The answer from ipa03 is ignored, let's hope this will fix it.
    
    The ipa_user module is returning "response user_mod: no modifications to
    be performed", which should be OK, but it's treated like fatal error.
    
    Signed-off-by: Michal Konecny <mkonecny@redhat.com>