Fix celerity map
Summary: Fix celerity map. Not sure how we managed, I thought we have a unit test for this nowadays?
Test Plan: Run `./bin/celerity map` on git master, see a difference
Reviewers: O1 Blessed Committers, avivey
Reviewed By: O1 Blessed Committers, avivey
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Differential Revision: https://we.phorge.it/D26771