055dfaf schema: do not crash in command_defaults if argument is None

Authored and Committed by jcholast 7 years ago
    schema: do not crash in command_defaults if argument is None
    
    https://fedorahosted.org/freeipa/ticket/4739
    
    Reviewed-By: David Kupka <dkupka@redhat.com>
    
        
file modified
+2 -2