Updated .received to be a list
Updated .received to be a list


Former-commit-id: b1663c62f47768692453113aef27b3a6fd4bcfd1 [formerly e2907f1503e82596bb89972a77edb27d303bd9d2]
Former-commit-id: 3cbf3c791a5f624f7c33c3e1f1329666acbc0897
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine