Fix [demos]
Fix [demos]


Former-commit-id: df9dd33e8f4989e24b2f6739fc9d8afbea5d9651 [formerly 9820d394c785e251665abc720132a5ee42df2ebf]
Former-commit-id: 93159327e04ff2766210e19f0ed611f5e1232bb6
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine