Refined task_duration
Refined task_duration


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Former-commit-id: 4a0522fe6a59f643b13d5db64917c19c862471da
Former-commit-id: c110b871566eba096e2869d656088e4a9f065f5d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine