Unrevert "Support writing to this.refs from userspace" (#28879)

Reverts #28877

We found the cause of the regression and should be able to land this
again.

DiffTrain build for commit b039be6.

Author: kassens

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<d6449a2b2f866a42a4d0c4e9ceba56bf>>
+ * @generated SignedSource<<eb0bcf528c3de17c6744b81c980f6aec>>
  */
 
 'use strict';
@@ -10939,7 +10939,14 @@ function mountClassInstance(workInProgress, ctor, newProps, renderLanes) {
   var instance = workInProgress.stateNode;
   instance.props = newProps;
   instance.state = workInProgress.memoizedState;
-  instance.refs = {};
+
+  {
+    // When string refs are used in create-react-class legacy components,
+    // we need to make refs writable unless we patch all such copies of the
+    // class code that sets to a frozen emptyObject.
+    instance.refs = {};
+  }
+
   initializeUpdateQueue(workInProgress);
   var contextType = ctor.contextType;
 
@@ -22989,7 +22996,7 @@ identifierPrefix, onUncaughtError, onCaughtError, onRecoverableError, transition
   return root;
 }
 
-var ReactVersion = '19.0.0-canary-88928511';
+var ReactVersion = '19.0.0-canary-d851d267';
 
 /*
  * The `'' + value` pattern (used in perf-sensitive code) throws for Symbol

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<5657642071f954739542e489d20fe745>>
+ * @generated SignedSource<<89ae74e0102293ea28fa8a01ffa204a7>>
  */
 
 'use strict';
@@ -27,7 +27,7 @@ if (
 }
           var dynamicFlagsUntyped = require('ReactNativeInternalFeatureFlags');
 
-var ReactVersion = '19.0.0-canary-bbf3fbcd';
+var ReactVersion = '19.0.0-canary-ffcb8911';
 
 // Re-export dynamic flags from the internal module.
 var dynamicFlags = dynamicFlagsUntyped; // We destructure each value before re-exporting to avoid a dynamic look-up on
@@ -270,21 +270,14 @@ var ReactNoopUpdateQueue = {
 
 var assign = Object.assign;
 
-var emptyObject = {};
-
-{
-  Object.freeze(emptyObject);
-}
 /**
  * Base class helpers for the updating state of a component.
  */
 
-
 function Component(props, context, updater) {
   this.props = props;
-  this.context = context; // If a component has string refs, we will assign a different object later.
-
-  this.refs = emptyObject; // We initialize the default updater but the real one gets injected by the
+  this.context = context;
+  this.refs = {}; // We initialize the default updater but the real one gets injected by the
   // renderer.
 
   this.updater = updater || ReactNoopUpdateQueue;
@@ -384,7 +377,7 @@ function PureComponent(props, context, updater) {
   this.props = props;
   this.context = context; // If a component has string refs, we will assign a different object later.
 
-  this.refs = emptyObject;
+  this.refs = {};
   this.updater = updater || ReactNoopUpdateQueue;
 }
 

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<cbcacaf4b89e6773658cda69244a4be6>>
+ * @generated SignedSource<<429307aea5989b6d3af53d1e3daeea57>>
  */
 
 "use strict";
@@ -50,12 +50,11 @@ var ReactNoopUpdateQueue = {
     enqueueReplaceState: function () {},
     enqueueSetState: function () {}
   },
-  assign = Object.assign,
-  emptyObject = {};
+  assign = Object.assign;
 function Component(props, context, updater) {
   this.props = props;
   this.context = context;
-  this.refs = emptyObject;
+  this.refs = {};
   this.updater = updater || ReactNoopUpdateQueue;
 }
 Component.prototype.isReactComponent = {};
@@ -78,7 +77,7 @@ ComponentDummy.prototype = Component.prototype;
 function PureComponent(props, context, updater) {
   this.props = props;
   this.context = context;
-  this.refs = emptyObject;
+  this.refs = {};
   this.updater = updater || ReactNoopUpdateQueue;
 }
 var pureComponentPrototype = (PureComponent.prototype = new ComponentDummy());
@@ -679,4 +678,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-canary-55ecd63c";
+exports.version = "19.0.0-canary-a22219fc";

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<fca7ed5acdad0291a3b263d96d523766>>
+ * @generated SignedSource<<90a5fdd3d2d77ff49898cf96e4b802da>>
  */
 
 "use strict";
@@ -54,12 +54,11 @@ var ReactNoopUpdateQueue = {
     enqueueReplaceState: function () {},
     enqueueSetState: function () {}
   },
-  assign = Object.assign,
-  emptyObject = {};
+  assign = Object.assign;
 function Component(props, context, updater) {
   this.props = props;
   this.context = context;
-  this.refs = emptyObject;
+  this.refs = {};
   this.updater = updater || ReactNoopUpdateQueue;
 }
 Component.prototype.isReactComponent = {};
@@ -82,7 +81,7 @@ ComponentDummy.prototype = Component.prototype;
 function PureComponent(props, context, updater) {
   this.props = props;
   this.context = context;
-  this.refs = emptyObject;
+  this.refs = {};
   this.updater = updater || ReactNoopUpdateQueue;
 }
 var pureComponentPrototype = (PureComponent.prototype = new ComponentDummy());
@@ -683,7 +682,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-canary-966142ac";
+exports.version = "19.0.0-canary-64485d5e";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION

@@ -1 +1 @@
-6f6e375fce9d0700434f863f70f0e2e5ea180426
+b039be627dd7403d7d2f63a48c8d263d955ce456

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<077c2c0ff9555d4a76d629316b424c88>>
+ * @generated SignedSource<<e23105fe3f0439fc7cd9d5143f2ae9f4>>
  */
 
 'use strict';
@@ -13963,7 +13963,14 @@ function mountClassInstance(workInProgress, ctor, newProps, renderLanes) {
   var instance = workInProgress.stateNode;
   instance.props = newProps;
   instance.state = workInProgress.memoizedState;
-  instance.refs = {};
+
+  {
+    // When string refs are used in create-react-class legacy components,
+    // we need to make refs writable unless we patch all such copies of the
+    // class code that sets to a frozen emptyObject.
+    instance.refs = {};
+  }
+
   initializeUpdateQueue(workInProgress);
   var contextType = ctor.contextType;
 
@@ -26059,7 +26066,7 @@ identifierPrefix, onUncaughtError, onCaughtError, onRecoverableError, transition
   return root;
 }
 
-var ReactVersion = '19.0.0-canary-4b13525c';
+var ReactVersion = '19.0.0-canary-e93cff57';
 
 /*
  * The `'' + value` pattern (used in perf-sensitive code) throws for Symbol

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-dev.fb.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<326542d2f2bb8bbc5fb69f5994f1ea0f>>
+ * @generated SignedSource<<eb0c79f9647d9ccb19601e79d168e28a>>
  */
 
 'use strict';
@@ -14202,7 +14202,14 @@ function mountClassInstance(workInProgress, ctor, newProps, renderLanes) {
   var instance = workInProgress.stateNode;
   instance.props = newProps;
   instance.state = workInProgress.memoizedState;
-  instance.refs = {};
+
+  {
+    // When string refs are used in create-react-class legacy components,
+    // we need to make refs writable unless we patch all such copies of the
+    // class code that sets to a frozen emptyObject.
+    instance.refs = {};
+  }
+
   initializeUpdateQueue(workInProgress);
   var contextType = ctor.contextType;
 
@@ -26474,7 +26481,7 @@ identifierPrefix, onUncaughtError, onCaughtError, onRecoverableError, transition
   return root;
 }
 
-var ReactVersion = '19.0.0-canary-2d608505';
+var ReactVersion = '19.0.0-canary-f458e15c';
 
 /*
  * The `'' + value` pattern (used in perf-sensitive code) throws for Symbol