message: Don't create a shared bundle unless you're going to merge 2 or more things together.
diff: @@ -278,10 +278,12 @@ export function mergeMatchingBundles(
  bundles: Bundle[], predicate: (bundle: Bundle) => boolean): Bundle[] {
  const newBundles = Array.from(bundles);
  const bundlesToMerge = newBundles.filter(predicate);
  + if (bundlesToMerge.length > 1) {
  for (const bundle of bundlesToMerge) {
  newBundles.splice(newBundles.indexOf(bundle), 1);
  }
  newBundles.push(mergeBundles(bundlesToMerge));
  + }
  return newBundles;
  }
  