547d616 sudo: do not fail if usn value is zero but full refresh is completed

2 files Authored by pbrezina 11 years ago, Committed by jhrozek 11 years ago,
    sudo: do not fail if usn value is zero but full refresh is completed
    
    https://fedorahosted.org/sssd/ticket/1596
    
    In case that LDAP server contains zero sudo rules, the full refresh
    completes succussfully and stores current USN value (= 0). But then
    smart refresh will fail because it takes USN=0 as invalid value.