LossCurveData.asset_ref is not nullable
LossCurveData.asset_ref is not nullable


Former-commit-id: 88570a530ab6b0e9e5689e8847d938bcab11c80f [formerly cd7a62061a8d34c8b1096dc85846e58b6d462dac] [formerly cd7a62061a8d34c8b1096dc85846e58b6d462dac [formerly fdf573d69ee083512f32ab186c4f977185781096]]
Former-commit-id: 7a7575368a773c7b11306ca8bf03bd25da124159
Former-commit-id: f6adbc7bb5f3d95ff305f7b939d5b234aecaf87d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine