src/vs/platform/configuration/common/configurationModels.ts/Configuration/compareAndUpdatePolicyConfiguration
class Configuration:	compareAndUpdatePolicyConfiguration(policyConfiguration: ConfigurationModel): IConfigurationChange {
		const { added, updated, removed } = compare(this._policyConfiguration, policyConfiguration);
		const keys = [...added, ...updated, ...removed];
		if (keys.length) {
			this.updatePolicyConfiguration(policyConfiguration);
		}
		return { keys, overrides: [] };
	}