Fix [demos]
Fix [demos]


Former-commit-id: 8c3dd8cf98f8235ee844c9650824bc8226d5705e [formerly e2614779d4904becf2a9b058625c8559f57dbafa]
Former-commit-id: c66f9b5b3f0afb26870d365af0c7106ce61ba467
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine