Sweeping !40459 from 21.0 to master. Fix FCS pieciewise linear interpolation lookup at edges (!40565) · Merge requests · atlas / athena · GitLab

Atlas Nightlybuild requested to merge cherry-pick-1a8622d9120-master into master Feb 11, 2021

Fix FCS pieciewise linear interpolation lookup at edges

See merge request !40459 (merged)