Don't create the job record if it already exists, as in the case of an oq-server calculation
Don't create the job record if it already exists, as in the case of an oq-server calculation


Former-commit-id: 80b16c556949806bc7c26b5d1888c72ed9dd0af9 [formerly 9658b1d171ee6f74e6f11cd1421fe60550f07047] [formerly 9658b1d171ee6f74e6f11cd1421fe60550f07047 [formerly cb4d296716c7ab786edd0ec68b794be0616fc859]]
Former-commit-id: 4c30c0a350c48c3158c1104baf865dc0041e8af9
Former-commit-id: 9aa4bd3a0e4bb63d5eb1b216a0d60083b61eca4f
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine