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Fixes JIRA GRINF-35. When we moved to a GR v9 based EngineeringModel, MeritTuple was moved from the output sequence to the reconstruction sequence. In case of events with errors, we skip the reconstruction sequence and inserts an empty event in the root files and ntuples, thus preserving the 1-1 correspondence between all the data files. Unfortunately, because of this change the empty events were not inserted into the Merit ntuple, thus breaking the 1-1 correspondence. This new release fixes this bug.
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