Some comments [skip CI]
Some comments [skip CI]


Former-commit-id: e0c311307510f0600119b2586ac2799881fbbc58 [formerly 0d3d1d83a18057060457e62e1f5a048f2845cb90]
Former-commit-id: 45f08e20724f30afc602d5814bc6851dc5f44c27
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine