ExPlat returns optional instead of assuming control as experiment variation. This lets the client know that there is no variation for an experiment.
Make Variation confirm to codable.
Why
In WooCommerce iOS, we will cache the variations for the logged-out experiments. We are doing this to try to remove the high crossovers in Abacus that we face for logged-out experiments.
Related to - https://github.com/woocommerce/woocommerce-ios/pull/8806
Changes
ExPlatreturns optional instead of assumingcontrolas experiment variation. This lets the client know that there is no variation for an experiment.Variationconfirm to codable.Why
In WooCommerce iOS, we will cache the variations for the logged-out experiments. We are doing this to try to remove the high crossovers in Abacus that we face for logged-out experiments.
Choosing this solution after exploring other options. More background in https://github.com/woocommerce/woocommerce-ios/pull/8788
Testing
CHANGELOG.mdif necessary.