[flags] Clean up enableHiddenSubtreeInsertionEffectCleanup (facebook#35918)

Been enabled in stable for quite a while, also rolled out at Meta.

DiffTrain build for [e0cc720](facebook@e0cc720)

Author: addcx1developer

compiled/eslint-plugin-react-hooks/index.js

@@ -1 +1 @@
-38cd020c1fb8a1e88b7852160796f411926a6fac
+e0cc7202e14418b453c69c4f06dc00c64151f202

compiled/facebook-www/REVISION

@@ -1 +1 @@
-38cd020c1fb8a1e88b7852160796f411926a6fac
+e0cc7202e14418b453c69c4f06dc00c64151f202

compiled/facebook-www/REVISION_TRANSFORMS

@@ -1482,7 +1482,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.3.0-www-classic-38cd020c-20260219";
+    exports.version = "19.3.0-www-classic-e0cc7202-20260227";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-dev.classic.js

@@ -1482,7 +1482,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.3.0-www-modern-38cd020c-20260219";
+    exports.version = "19.3.0-www-modern-e0cc7202-20260227";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-dev.modern.js

@@ -610,4 +610,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-classic-38cd020c-20260219";
+exports.version = "19.3.0-www-classic-e0cc7202-20260227";

compiled/facebook-www/React-prod.classic.js

@@ -610,4 +610,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-modern-38cd020c-20260219";
+exports.version = "19.3.0-www-modern-e0cc7202-20260227";

compiled/facebook-www/React-prod.modern.js

@@ -614,7 +614,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-classic-38cd020c-20260219";
+exports.version = "19.3.0-www-classic-e0cc7202-20260227";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-profiling.classic.js

@@ -614,7 +614,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-modern-38cd020c-20260219";
+exports.version = "19.3.0-www-modern-e0cc7202-20260227";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-profiling.modern.js

@@ -3044,7 +3044,20 @@ __DEV__ &&
             workInProgress
           );
           nextFiber = null;
-        } else nextFiber = fiber.child;
+        } else
+          13 === fiber.tag &&
+          null !== fiber.memoizedState &&
+          null === fiber.memoizedState.dehydrated
+            ? ((fiber.lanes |= renderLanes),
+              (nextFiber = fiber.alternate),
+              null !== nextFiber && (nextFiber.lanes |= renderLanes),
+              scheduleContextWorkOnParentPath(
+                fiber.return,
+                renderLanes,
+                workInProgress
+              ),
+              (nextFiber = forcePropagateEntireTree ? fiber.child : null))
+            : (nextFiber = fiber.child);
         if (null !== nextFiber) nextFiber.return = fiber;
         else
           for (nextFiber = fiber; null !== nextFiber; ) {
@@ -3110,6 +3123,7 @@ __DEV__ &&
           forcePropagateEntireTree
         );
       workInProgress.flags |= 262144;
+      return null !== current;
     }
     function checkIfContextChanged(currentDependencies) {
       for (
@@ -9406,7 +9420,14 @@ __DEV__ &&
                 (workInProgress.flags |= 128),
                 null
               );
-            if (0 !== (renderLanes & workInProgress.child.childLanes))
+            stateNode = propagateParentContextChanges(
+              current,
+              workInProgress,
+              renderLanes,
+              !1
+            );
+            var primaryChildLanes = workInProgress.child.childLanes;
+            if (stateNode || 0 !== (renderLanes & primaryChildLanes))
               return updateSuspenseComponent(
                 current,
                 workInProgress,
@@ -9429,7 +9450,7 @@ __DEV__ &&
               workInProgress,
               renderLanes
             );
-          var didSuspendBefore = 0 !== (current.flags & 128);
+          primaryChildLanes = 0 !== (current.flags & 128);
           stateNode = 0 !== (renderLanes & workInProgress.childLanes);
           stateNode ||
             (propagateParentContextChanges(
@@ -9439,7 +9460,7 @@ __DEV__ &&
               !1
             ),
             (stateNode = 0 !== (renderLanes & workInProgress.childLanes)));
-          if (didSuspendBefore) {
+          if (primaryChildLanes) {
             if (stateNode)
               return updateSuspenseListComponent(
                 current,
@@ -9448,11 +9469,11 @@ __DEV__ &&
               );
             workInProgress.flags |= 128;
           }
-          didSuspendBefore = workInProgress.memoizedState;
-          null !== didSuspendBefore &&
-            ((didSuspendBefore.rendering = null),
-            (didSuspendBefore.tail = null),
-            (didSuspendBefore.lastEffect = null));
+          primaryChildLanes = workInProgress.memoizedState;
+          null !== primaryChildLanes &&
+            ((primaryChildLanes.rendering = null),
+            (primaryChildLanes.tail = null),
+            (primaryChildLanes.lastEffect = null));
           pushSuspenseListContext(workInProgress, suspenseStackCursor.current);
           if (stateNode) break;
           else return null;
@@ -12777,13 +12798,11 @@ __DEV__ &&
         case 11:
         case 14:
         case 15:
-          (!enableHiddenSubtreeInsertionEffectCleanup &&
-            offscreenSubtreeWasHidden) ||
-            commitHookEffectListUnmount(
-              Insertion,
-              deletedFiber,
-              nearestMountedAncestor
-            );
+          commitHookEffectListUnmount(
+            Insertion,
+            deletedFiber,
+            nearestMountedAncestor
+          );
           offscreenSubtreeWasHidden ||
             commitHookLayoutUnmountEffects(
               deletedFiber,
@@ -18137,8 +18156,6 @@ __DEV__ &&
         dynamicFeatureFlags.disableSchedulerTimeoutInWorkLoop,
       enableEffectEventMutationPhase =
         dynamicFeatureFlags.enableEffectEventMutationPhase,
-      enableHiddenSubtreeInsertionEffectCleanup =
-        dynamicFeatureFlags.enableHiddenSubtreeInsertionEffectCleanup,
       enableInfiniteRenderLoopDetection =
         dynamicFeatureFlags.enableInfiniteRenderLoopDetection,
       enableNoCloningMemoCache = dynamicFeatureFlags.enableNoCloningMemoCache,
@@ -20383,10 +20400,10 @@ __DEV__ &&
     (function () {
       var internals = {
         bundleType: 1,
-        version: "19.3.0-www-classic-38cd020c-20260219",
+        version: "19.3.0-www-classic-e0cc7202-20260227",
         rendererPackageName: "react-art",
         currentDispatcherRef: ReactSharedInternals,
-        reconcilerVersion: "19.3.0-www-classic-38cd020c-20260219"
+        reconcilerVersion: "19.3.0-www-classic-e0cc7202-20260227"
       };
       internals.overrideHookState = overrideHookState;
       internals.overrideHookStateDeletePath = overrideHookStateDeletePath;
@@ -20421,7 +20438,7 @@ __DEV__ &&
     exports.Shape = Shape;
     exports.Surface = Surface;
     exports.Text = Text;
-    exports.version = "19.3.0-www-classic-38cd020c-20260219";
+    exports.version = "19.3.0-www-classic-e0cc7202-20260227";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&