Only make vector of DetectorElements if needed (i.e. for Run 4) (23.0 edition) (!63869) · Merge requests · atlas / athena

See merge request !63845 (merged) - I put this into the wrong branch

(cherry picked from commit 5523b51b)

87ae2138 Only make vector of DetectorElements if needed (i.e. for Run 4) 5eae2c63 Remove commented out code

Only make vector of DetectorElements if needed (i.e. for Run 4) (23.0 edition)