From e04f4259c4c2063038c47e0364f4d7ac71236bc0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Markb=C3=A5ge?= <sema@fb.com>
Date: Tue, 10 Sep 2019 19:38:44 -0700
Subject: [PATCH] Handle SuspenseListComponent getting retried (#16745)

This happens for example when a deleted boundary transfers its pending
promises to the list so that the list can be retried.

This wasn't caught by unit tests because this flag wasn't on in those
tests.
---
 packages/react-reconciler/src/ReactFiberWorkLoop.js           | 4 ++++
 .../src/__tests__/ReactSuspenseList-test.internal.js          | 1 +
 2 files changed, 5 insertions(+)

diff --git a/packages/react-reconciler/src/ReactFiberWorkLoop.js b/packages/react-reconciler/src/ReactFiberWorkLoop.js
index e02ae2d5f8f92..cfa2f3e0e959e 100644
--- a/packages/react-reconciler/src/ReactFiberWorkLoop.js
+++ b/packages/react-reconciler/src/ReactFiberWorkLoop.js
@@ -77,6 +77,7 @@ import {
   HostRoot,
   ClassComponent,
   SuspenseComponent,
+  SuspenseListComponent,
   FunctionComponent,
   ForwardRef,
   MemoComponent,
@@ -2223,6 +2224,9 @@ export function resolveRetryThenable(boundaryFiber: Fiber, thenable: Thenable) {
           retryTime = suspenseState.retryTime;
         }
         break;
+      case SuspenseListComponent:
+        retryCache = boundaryFiber.stateNode;
+        break;
       default:
         invariant(
           false,
diff --git a/packages/react-reconciler/src/__tests__/ReactSuspenseList-test.internal.js b/packages/react-reconciler/src/__tests__/ReactSuspenseList-test.internal.js
index f9b46822cd4c7..428f7ff95f2f2 100644
--- a/packages/react-reconciler/src/__tests__/ReactSuspenseList-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactSuspenseList-test.internal.js
@@ -11,6 +11,7 @@ describe('ReactSuspenseList', () => {
     ReactFeatureFlags = require('shared/ReactFeatureFlags');
     ReactFeatureFlags.debugRenderPhaseSideEffectsForStrictMode = false;
     ReactFeatureFlags.replayFailedUnitOfWorkWithInvokeGuardedCallback = false;
+    ReactFeatureFlags.enableSuspenseServerRenderer = true;
     React = require('react');
     ReactNoop = require('react-noop-renderer');
     Scheduler = require('scheduler');