If individual_curves is set, multi-imt curves must not be generated
If individual_curves is set, multi-imt curves must not be generated


Former-commit-id: 5da65396293a85b9a1489df75236aecd6a11744a
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine