Removed zero losses in losses_by_event
Removed zero losses in losses_by_event


Former-commit-id: f7cca33d974156932e79282294131078d7b0348d [formerly 706b552bf1be11823603a108b12e8b0c02b12bab]
Former-commit-id: fb3a00e791c9e5c4ccaee2740eac67c3aae4b691
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine