Fixed bug in the losses_by_event exporter
Fixed bug in the losses_by_event exporter


Former-commit-id: 959e19e1a3dc26cf47376cc9b45bd584496be6b0 [formerly 0ba19613c905d6789bb8d484779e4d2cb35dd95c]
Former-commit-id: 3a2eda63eac033f496766520d3920b148e4613fa
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine