a85e247 Ticket 48894 - harden valueset_array_to_sorted_quick valueset

Authored and Committed by mreynolds 6 years ago
    Ticket 48894 - harden valueset_array_to_sorted_quick valueset
     access
    
    Description:  It's possible during the sorting of a valueset to access an
                  array element past the allocated size, and also go below the index 0.
    
    https://pagure.io/389-ds-base/issue/48894
    
    Reviewed by: nweiderm (Thanks!)
    
    (cherry picked from commit 2086d052e338ddcbcf6bd3222617991641573a12)