Sweeping !21904 from 21.3 to master. Apply MMSimHit in MM fast digitization (ATLASSIM-3755) (!21948) · Merge requests · atlas / athena · GitLab

Atlas Nightlybuild requested to merge cherry-pick-84f662910d-master into master Mar 15, 2019

Apply MMSimHit in MM fast digitization (ATLASSIM-3755)

See merge request !21904 (merged)