From 2716d91ec4757c8d46e5af09066e2db5c8b4d499 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Markb=C3=A5ge?= <sema@fb.com>
Date: Mon, 12 Aug 2019 14:16:25 -0700
Subject: [PATCH] Reset didReceiveUpdate in beginWork (#16359)

This is a bad bug. It means that we sometimes inherit
didReceiveUpdate from a previous component's begin.

Effectively this only means that we're overrendering in some cases.

We should refactor to get rid of this as a global flag.
---
 packages/react-reconciler/src/ReactFiberBeginWork.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.js b/packages/react-reconciler/src/ReactFiberBeginWork.js
index 02e26ae74627..88fdf4c1ac41 100644
--- a/packages/react-reconciler/src/ReactFiberBeginWork.js
+++ b/packages/react-reconciler/src/ReactFiberBeginWork.js
@@ -2846,6 +2846,8 @@ function beginWork(
         workInProgress,
         renderExpirationTime,
       );
+    } else {
+      didReceiveUpdate = false;
     }
   } else {
     didReceiveUpdate = false;