Keeping sources_by_task in memory [skip hazardlib]
Keeping sources_by_task in memory [skip hazardlib]


Former-commit-id: d2bece82f4ac15f792221c02031dc8e6fa7ebea8 [formerly d2bece82f4ac15f792221c02031dc8e6fa7ebea8 [formerly 9db39cf9238af86905be01dc09de0b21b83b5d45]]
Former-commit-id: 422778bf3f6e5bf3504857e348d254d85a83d964
Former-commit-id: 70bd9b28636f4d428133fed6bf8a686c3301723b
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine