use sync store from settings if provided

src/vs/platform/userDataSync/common/userDataSync.ts

@@ -125,7 +125,7 @@ export interface IUserDataSyncStore {
 }
 
 export function getUserDataSyncStore(productService: IProductService, configurationService: IConfigurationService): IUserDataSyncStore | undefined {
-	const value = productService[CONFIGURATION_SYNC_STORE_KEY] || configurationService.getValue<{ url: string, authenticationProviderId: string }>(CONFIGURATION_SYNC_STORE_KEY);
+	const value = configurationService.getValue<{ url: string, authenticationProviderId: string }>(CONFIGURATION_SYNC_STORE_KEY) || productService[CONFIGURATION_SYNC_STORE_KEY];
 	if (value && value.url && value.authenticationProviderId) {
 		return {
 			url: joinPath(URI.parse(value.url), 'v1'),