From 8c0195ddf19798fe57f91a469433f69040a69706 Mon Sep 17 00:00:00 2001
From: Emil Persson <emil.persson@svt.se>
Date: Fri, 7 Dec 2018 12:10:55 +0100
Subject: [PATCH] Attempt to fix #2340

---
 packages/core/parcel-bundler/src/Bundle.js  | 9 +++++++++
 packages/core/parcel-bundler/src/Bundler.js | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/packages/core/parcel-bundler/src/Bundle.js b/packages/core/parcel-bundler/src/Bundle.js
index e4dbf718776..3bd540f734b 100644
--- a/packages/core/parcel-bundler/src/Bundle.js
+++ b/packages/core/parcel-bundler/src/Bundle.js
@@ -89,6 +89,15 @@ class Bundle {
     return bundle;
   }
 
+  addChildBundle(bundle) {
+    this.childBundles.add(bundle);
+  }
+
+  addSiblingBundle(bundle) {
+    this.addChildBundle(bundle);
+    this.siblingBundles.add(bundle);
+  }
+
   get isEmpty() {
     return this.assets.size === 0;
   }
diff --git a/packages/core/parcel-bundler/src/Bundler.js b/packages/core/parcel-bundler/src/Bundler.js
index f82222bf88f..f94ccc28ca6 100644
--- a/packages/core/parcel-bundler/src/Bundler.js
+++ b/packages/core/parcel-bundler/src/Bundler.js
@@ -654,6 +654,7 @@ class Bundler extends EventEmitter {
     if ((dep && dep.dynamic) || !bundle.type) {
       // If the asset is already the entry asset of a bundle, don't create a duplicate.
       if (isEntryAsset) {
+        bundle.addChildBundle(asset.parentBundle);
         return;
       }
 
@@ -665,6 +666,7 @@ class Bundler extends EventEmitter {
     ) {
       // If the asset is already the entry asset of a bundle, don't create a duplicate.
       if (isEntryAsset) {
+        bundle.addSiblingBundle(asset.parentBundle);
         return;
       }