fixed task arg gen
fixed task arg gen


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Former-commit-id: 6d75dbb3214fbe6c516200ee9a049f231e523987
Former-commit-id: 643b3d59a0302fcd345b8b17a71affbf62a986bc
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine