From bebd44f793ccd13bfdf90c7e45eac320a340650c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 16 Sep 2020 12:18:03 -0400
Subject: [PATCH] fix(runtime-core): ensure root stable fragments inherit
 elements for moving

fix #2134
---
 packages/runtime-core/src/renderer.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/runtime-core/src/renderer.ts b/packages/runtime-core/src/renderer.ts
index 485dcf15077..6d01e3e5147 100644
--- a/packages/runtime-core/src/renderer.ts
+++ b/packages/runtime-core/src/renderer.ts
@@ -1157,7 +1157,12 @@ function baseCreateRenderer(
         )
         // #2080 if the stable fragment has a key, it's a <template v-for> that may
         //  get moved around. Make sure all root level vnodes inherit el.
-        if (n2.key != null) {
+        // #2134 or if it's a component root, it may also get moved around
+        // as the component is being moved.
+        if (
+          n2.key != null ||
+          (parentComponent && n2 === parentComponent.subTree)
+        ) {
           traverseStaticChildren(n1, n2, true /* shallow */)
         }
       } else {