Refs #100321  Keep the PIT entry around while there are unexpired upstreams.
Refs #100321  Keep the PIT entry around while there are unexpired upstreams.

cawka/ndnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,cawka/ndnx,svartika/ccnx,cawka/ndnx,svartika/ccnx,cawka/ndnx,cawka/ndnx