Ticket 47921 - indirect cos does not reflect changes in the cos attribute
    
    Bug Description:  Indirect cos results are incorrectly cached, so any changes
                      to entries that are indirect are not returned to the client.
    
    Fix Description:  Do not cache the vattr result if it came from a indirect cos
                      definition.
    
    https://fedorahosted.org/389/ticket/47921
    
    Reviewed by: nhosoi(Thanks!)