From 089f02a4d0c354a882b1137df6f7c82050aa4d45 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Fri, 13 Oct 2017 21:05:53 +0800
Subject: [PATCH] fix(transition-group): work around rollup tree shaking
 (#6796)

fix #6792
---
 src/platforms/web/runtime/components/transition-group.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
index b0133d71b3c..219ff01cf54 100644
--- a/src/platforms/web/runtime/components/transition-group.js
+++ b/src/platforms/web/runtime/components/transition-group.js
@@ -101,8 +101,9 @@ export default {
     children.forEach(applyTranslation)
 
     // force reflow to put everything in position
-    const body: any = document.body
-    const f: number = body.offsetHeight // eslint-disable-line
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight
 
     children.forEach((c: VNode) => {
       if (c.data.moved) {