Yes, remove / comment out the reversible entry from the avoid set here:
https://github.com/Project-OSRM/osrm-backend/blob/9a8ed30e953cd629aeb947a4bc72dfafc8cd55f9/profiles/car.lua#L116
then the way handler will not discard reversible oneways here:
Hi there.
Problem: OSRM throw away oneway=reversible, for example
https://www.openstreetmap.org/way/38910459#map=17/53.58542/10.00598
If you are at highway Krohnskamp nearby, which itself is a unconditional
oneway, you're stuck.
For our internal use-case we have to route over those ways,
