Storing again the number of samples
Storing again the number of samples


Former-commit-id: 408c5d9e79ae9abac360581b4fb205bf575cd54b [formerly e2806bb1e57163424af12c64b4051a3411ff3c8f]
Former-commit-id: 3884e586cc35a04936c6d417be1ae04fd5f64ac8
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine