Bug#880656: lastbind module and missing forwarding updates

[Ryan Tandy]

Control: tag -1 fixed-upstream

This lastbind enhancement has been added to the 2.4 branch for the 
upcoming 2.4.48 release. That makes it too late for buster, but it will 
be available in bullseye and buster-backports.

http://www.openldap.org/lists/openldap-commit/201906/msg00025.html