message: fix(node/bundler): Prevent spreading string into return
diff: @@ -22,7 +22,11 @@ export async function compileBundleOptions(config: BundleInput | string | undefi
  }
  return configFromFile;
  }
  - return Object.assign({}, configFromFile, config);
  +
  + return {
  + ...configFromFile,
  + ...(typeof config === 'string') ? {} : config
  + };
  } catch (e) {
  if (typeof f === 'string') {
  throw new Error(`Error occurred while loading config file at ${config}: ${e}`);
  