Deployed experiments (winner rollout) should be active in Preview mode for other experiments.

Currently, when an experiment is concluded, and the winning variation is deployed, this deployed variation is active for all visitors on the website. However, when Previewing another/new experiment, that deployed experiment is not active.

Since the deployed variation should be considered the "is-state" of the website, and it is publicly visible to regular visitors, it should also be visible in the Preview mode.