Simplification because now the maximum_distance is mandatory
Simplification because now the maximum_distance is mandatory


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Former-commit-id: aa1ab051d59c6acd06e3b8c65ee69b0ac354fd74
Former-commit-id: 5b5c5ef3cb6b5b5e671cafe1b48122f2ec3f6afd
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine