src/vs/platform/configuration/common/configurationModels.ts/Configuration/userConfiguration
class Configuration:	get userConfiguration(): ConfigurationModel {
		if (!this._userConfiguration) {
			this._userConfiguration = this._remoteUserConfiguration.isEmpty() ? this._localUserConfiguration : this._localUserConfiguration.merge(this._remoteUserConfiguration);
			if (this._freeze) {
				this._userConfiguration.freeze();
			}
		}
		return this._userConfiguration;
	}