An organization defines configuration variable DEPLOY_REGION as us-east-1. A repository defines the same configuration variable as eu-west-1. With no deployment-environment override, which value does vars.DEPLOY_REGION use in a workflow from that repository?

1. The value becomes a randomly selected region each time a runner starts.
2. The repository value eu-west-1 takes precedence over the organization value.
3. Both values are concatenated into one region string.
4. The organization value us-east-1 always overrides repository configuration.