Sweeping !53774 from master to 22.0. ElectronMaterialMixtureConvolution : simplify and streamline a bit the code (!53821) · Merge requests · atlas / athena · GitLab

Atlas Nightlybuild requested to merge cherry-pick-ea8f0c2fc88-22.0 into 22.0 May 31, 2022

ElectronMaterialMixtureConvolution : simplify and streamline a bit the code

See merge request !53774 (merged)