Please review: [389 Project] #48109: substring index with nssubstrbegin: 1 is not being used with filters like (attr=x*)

[Noriko Hosoi]

https://fedorahosted.org/389/ticket/48109

https://fedorahosted.org/389/attachment/ticket/48109/0001-Ticket-48109-su...
https://fedorahosted.org/389/attachment/ticket/48109/0002-Ticket-48109-CI...