From fc210f8068d1e90ae849cb6d35686af4faad5f50 Mon Sep 17 00:00:00 2001
From: Rick Hanlon <rickhanlonii@gmail.com>
Date: Tue, 10 May 2022 11:35:56 -0400
Subject: [PATCH] Only treat updates to lazy as a new mount in legacy mode

---
 packages/react-reconciler/src/ReactFiberBeginWork.new.js | 2 +-
 packages/react-reconciler/src/ReactFiberBeginWork.old.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.new.js b/packages/react-reconciler/src/ReactFiberBeginWork.new.js
index 662ac5bbe59a2..f723036c66299 100644
--- a/packages/react-reconciler/src/ReactFiberBeginWork.new.js
+++ b/packages/react-reconciler/src/ReactFiberBeginWork.new.js
@@ -1635,7 +1635,7 @@ function mountIndeterminateComponent(
   Component,
   renderLanes,
 ) {
-  if (_current !== null) {
+  if (_current !== null && (workInProgress.mode & ConcurrentMode) === NoMode) {
     // An indeterminate component only mounts if it suspended inside a non-
     // concurrent tree, in an inconsistent state. We want to treat it like
     // a new mount, even though an empty version of it already committed.
diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.old.js b/packages/react-reconciler/src/ReactFiberBeginWork.old.js
index 81815280e07ee..25683220bb3a1 100644
--- a/packages/react-reconciler/src/ReactFiberBeginWork.old.js
+++ b/packages/react-reconciler/src/ReactFiberBeginWork.old.js
@@ -1635,7 +1635,7 @@ function mountIndeterminateComponent(
   Component,
   renderLanes,
 ) {
-  if (_current !== null) {
+  if (_current !== null && (workInProgress.mode & ConcurrentMode) === NoMode) {
     // An indeterminate component only mounts if it suspended inside a non-
     // concurrent tree, in an inconsistent state. We want to treat it like
     // a new mount, even though an empty version of it already committed.