dijkstra_shortest_paths should never return a reverse path
dijkstra_shortest_paths should never return a reverse path

paulbdavis/ledger,paulbdavis/ledger,afh/ledger,duncanmortimer/ledger,jwakely/ledger,duncanmortimer/ledger,paulbdavis/ledger,ledger/ledger,ledger/ledger,paulbdavis/ledger,afh/ledger,jwakely/ledger,jwakely/ledger,paulbdavis/ledger,jwakely/ledger,afh/ledger,duncanmortimer/ledger,ledger/ledger,duncanmortimer/ledger,afh/ledger,duncanmortimer/ledger,paulbdavis/ledger,ledger/ledger,afh/ledger,duncanmortimer/ledger,jwakely/ledger,duncanmortimer/ledger,paulbdavis/ledger,jwakely/ledger,jwakely/ledger,ledger/ledger