Fix [skip hazardlib][demos]
Fix [skip hazardlib][demos]


Former-commit-id: 1459bd6f238a0fb68ed2a9af52c7ff7917f054e7 [formerly 1459bd6f238a0fb68ed2a9af52c7ff7917f054e7 [formerly 2dfa542ab3660c9cacc600403611cca700f43352]]
Former-commit-id: aec952ad401bf882e840856b2a65ff1d25ee1fdb
Former-commit-id: 8853d51b354b7a0cf98d1edc1405d328c0f34962
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine