Upgrade React from 84af9085-20250917 to d415fd3e-20250919 (#84003)

[diff
facebook/react@84af9085...d415fd3e](facebook/react@84af908...d415fd3)

<details>
<summary>React upstream changes</summary>

- facebook/react#34536
- facebook/react#34534
- facebook/react#34531
- facebook/react#34499
- facebook/react#34523
- facebook/react#34511
- facebook/react#34516
- facebook/react#34455
- facebook/react#34488
- facebook/react#34521

</details>

Author: nextjs-bot

package.json

@@ -179,7 +179,7 @@
     "eslint-plugin-jsdoc": "48.0.4",
     "eslint-plugin-mdx": "3.1.5",
     "eslint-plugin-react": "7.35.0",
-    "eslint-plugin-react-hooks": "0.0.0-experimental-84af9085-20250917",
+    "eslint-plugin-react-hooks": "0.0.0-experimental-d415fd3e-20250919",
     "eslint-v8": "npm:eslint@^8.57.0",
     "event-stream": "4.0.1",
     "execa": "2.0.3",
@@ -239,16 +239,16 @@
     "pretty-ms": "7.0.0",
     "random-seed": "0.3.0",
     "react": "19.0.0",
-    "react-builtin": "npm:react@19.2.0-canary-84af9085-20250917",
+    "react-builtin": "npm:react@19.2.0-canary-d415fd3e-20250919",
     "react-dom": "19.0.0",
-    "react-dom-builtin": "npm:react-dom@19.2.0-canary-84af9085-20250917",
-    "react-dom-experimental-builtin": "npm:react-dom@0.0.0-experimental-84af9085-20250917",
-    "react-experimental-builtin": "npm:react@0.0.0-experimental-84af9085-20250917",
-    "react-is-builtin": "npm:react-is@19.2.0-canary-84af9085-20250917",
-    "react-server-dom-turbopack": "19.2.0-canary-84af9085-20250917",
-    "react-server-dom-turbopack-experimental": "npm:react-server-dom-turbopack@0.0.0-experimental-84af9085-20250917",
-    "react-server-dom-webpack": "19.2.0-canary-84af9085-20250917",
-    "react-server-dom-webpack-experimental": "npm:react-server-dom-webpack@0.0.0-experimental-84af9085-20250917",
+    "react-dom-builtin": "npm:react-dom@19.2.0-canary-d415fd3e-20250919",
+    "react-dom-experimental-builtin": "npm:react-dom@0.0.0-experimental-d415fd3e-20250919",
+    "react-experimental-builtin": "npm:react@0.0.0-experimental-d415fd3e-20250919",
+    "react-is-builtin": "npm:react-is@19.2.0-canary-d415fd3e-20250919",
+    "react-server-dom-turbopack": "19.2.0-canary-d415fd3e-20250919",
+    "react-server-dom-turbopack-experimental": "npm:react-server-dom-turbopack@0.0.0-experimental-d415fd3e-20250919",
+    "react-server-dom-webpack": "19.2.0-canary-d415fd3e-20250919",
+    "react-server-dom-webpack-experimental": "npm:react-server-dom-webpack@0.0.0-experimental-d415fd3e-20250919",
     "react-ssr-prepass": "1.0.8",
     "react-virtualized": "9.22.3",
     "relay-compiler": "13.0.2",
@@ -258,8 +258,8 @@
     "resolve-from": "5.0.0",
     "sass": "1.54.0",
     "satori": "0.15.2",
-    "scheduler-builtin": "npm:scheduler@0.27.0-canary-84af9085-20250917",
-    "scheduler-experimental-builtin": "npm:scheduler@0.0.0-experimental-84af9085-20250917",
+    "scheduler-builtin": "npm:scheduler@0.27.0-canary-d415fd3e-20250919",
+    "scheduler-experimental-builtin": "npm:scheduler@0.0.0-experimental-d415fd3e-20250919",
     "seedrandom": "3.0.5",
     "semver": "7.3.7",
     "serve-handler": "6.1.6",
@@ -303,10 +303,10 @@
       "@types/react-dom": "19.1.7",
       "@types/retry": "0.12.0",
       "jest-snapshot": "30.0.0-alpha.6",
-      "react": "19.2.0-canary-84af9085-20250917",
-      "react-dom": "19.2.0-canary-84af9085-20250917",
-      "react-is": "19.2.0-canary-84af9085-20250917",
-      "scheduler": "0.27.0-canary-84af9085-20250917"
+      "react": "19.2.0-canary-d415fd3e-20250919",
+      "react-dom": "19.2.0-canary-d415fd3e-20250919",
+      "react-is": "19.2.0-canary-d415fd3e-20250919",
+      "scheduler": "0.27.0-canary-d415fd3e-20250919"
     },
     "packageExtensions": {
       "eslint-plugin-react-hooks@0.0.0-experimental-6de32a5a-20250822": {

packages/next/src/compiled/react-dom-experimental/cjs/react-dom-client.development.js

@@ -13486,7 +13486,8 @@ function commitRoot(
             flushAfterMutationEffects,
             flushSpawnedWork,
             flushPassiveEffects,
-            reportViewTransitionError
+            reportViewTransitionError,
+            null
           ))
         : (flushMutationEffects(), flushLayoutEffects(), flushSpawnedWork());
     }
@@ -16819,16 +16820,16 @@ function startViewTransition(
           (forceLayout(ownerDocument),
           "loading" === ownerDocument.fonts.status &&
             blockingPromises.push(ownerDocument.fonts.ready));
-        if (null !== suspendedState) {
-          previousFontLoadingStatus = suspendedState.suspenseyImages;
+        previousFontLoadingStatus = blockingPromises.length;
+        if (null !== suspendedState)
           for (
-            var blockingIndexSnapshot = blockingPromises.length,
+            var suspenseyImages = suspendedState.suspenseyImages,
               imgBytes = 0,
               i = 0;
-            i < previousFontLoadingStatus.length;
+            i < suspenseyImages.length;
             i++
           ) {
-            var suspenseyImage = previousFontLoadingStatus[i];
+            var suspenseyImage = suspenseyImages[i];
             if (!suspenseyImage.complete) {
               var rect = suspenseyImage.getBoundingClientRect();
               if (
@@ -16839,7 +16840,7 @@ function startViewTransition(
               ) {
                 imgBytes += estimateImageBytes(suspenseyImage);
                 if (imgBytes > estimatedBytesWithinLimit) {
-                  blockingPromises.length = blockingIndexSnapshot;
+                  blockingPromises.length = previousFontLoadingStatus;
                   break;
                 }
                 suspenseyImage = new Promise(
@@ -16849,7 +16850,6 @@ function startViewTransition(
               }
             }
           }
-        }
         if (0 < blockingPromises.length)
           return (
             (ownerWindow = Promise.race([
@@ -19567,14 +19567,14 @@ ReactDOMHydrationRoot.prototype.unstable_scheduleHydration = function (target) {
 };
 var isomorphicReactPackageVersion$jscomp$inline_2216 = React.version;
 if (
-  "19.2.0-experimental-84af9085-20250917" !==
+  "19.2.0-experimental-d415fd3e-20250919" !==
   isomorphicReactPackageVersion$jscomp$inline_2216
 )
   throw Error(
     formatProdErrorMessage(
       527,
       isomorphicReactPackageVersion$jscomp$inline_2216,
-      "19.2.0-experimental-84af9085-20250917"
+      "19.2.0-experimental-d415fd3e-20250919"
     )
   );
 ReactDOMSharedInternals.findDOMNode = function (componentOrElement) {
@@ -19596,10 +19596,10 @@ ReactDOMSharedInternals.findDOMNode = function (componentOrElement) {
 };
 var internals$jscomp$inline_2913 = {
   bundleType: 0,
-  version: "19.2.0-experimental-84af9085-20250917",
+  version: "19.2.0-experimental-d415fd3e-20250919",
   rendererPackageName: "react-dom",
   currentDispatcherRef: ReactSharedInternals,
-  reconcilerVersion: "19.2.0-experimental-84af9085-20250917"
+  reconcilerVersion: "19.2.0-experimental-d415fd3e-20250919"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_2914 = __REACT_DEVTOOLS_GLOBAL_HOOK__;
@@ -19706,4 +19706,4 @@ exports.hydrateRoot = function (container, initialChildren, options) {
   listenToAllSupportedEvents(container);
   return new ReactDOMHydrationRoot(initialChildren);
 };
-exports.version = "19.2.0-experimental-84af9085-20250917";
+exports.version = "19.2.0-experimental-d415fd3e-20250919";