Sweeping !22797 from 21.3 to 21.9. Fix infinite loop in FTKSim caused by bad particle parent record (!22830) · Merge requests · atlas / athena · GitLab

Atlas Nightlybuild requested to merge cherry-pick-1cbfe52cb0-21.9 into 21.9 Apr 19, 2019

Fix infinite loop in FTKSim caused by bad particle parent record

See merge request !22797 (merged)