Small fix [skip hazardlib][demos]
Small fix [skip hazardlib][demos]


Former-commit-id: 25742549e1e88d129913479d85f916de075f8a70 [formerly 25742549e1e88d129913479d85f916de075f8a70 [formerly b3e449226cb6b78d8ba694dcd0b9ba8cd61111ee]]
Former-commit-id: f7de2d573e8d233f3baeabb97f5156a6b5e7e1d2
Former-commit-id: bc017b4fa84ad786ec9f97557e0f056c9af155c6
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine