Fixing some unfortunate changes introduced by !53558 (merged): changed errors back to fatals; fix possible double initialization; put testing macro to a separate file.
GitLab Runners cleaning campaign ongoing (ETA 2nd October 2023). Check https://cern.ch/otg0078219 for further information.
Fixing some unfortunate changes introduced by !53558 (merged): changed errors back to fatals; fix possible double initialization; put testing macro to a separate file.