Expected behavior

Street routing generates the same routes for departAt and arriveBy

Observed behavior

Street routing generates the different routes for departAt and arriveBy, causing a test failure.
The routes generated have a small generalized cost difference.

Version of OTP used (exact commit hash or JAR name)

2.8.0-SNAPSHOT

Data sets in use (links to GTFS and OSM PBF files)

The included Portland graph for the test

Command line used to start OTP

N/A

Router config and graph build config JSON

in the test case

Steps to reproduce the problem

I am not sure if the same problem appears in the real world, however, there are two tests which failed on TransitSnapshotTest after I added walk safety into the graph, where a reverse search found a faster route with generalizedCost 1 second less.