Fix iOS removeClippedSubviews being lost on recycled views

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

Author: mozzius

packages/react-native/React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm

@@ -359,7 +359,9 @@ - (void)updateProps:(const Props::Shared &)props oldProps:(const Props::Shared &
 
   // Disable `removeClippedSubviews` when Fabric View Culling is enabled.
   if (!ReactNativeFeatureFlags::enableViewCulling()) {
-    if (oldViewProps.removeClippedSubviews != newViewProps.removeClippedSubviews) {
+    // Compare against the current state, not `_props`: `prepareForRecycle` resets
+    // `_removeClippedSubviews` but keeps `_props`.
+    if (_removeClippedSubviews != newViewProps.removeClippedSubviews) {
       _removeClippedSubviews = newViewProps.removeClippedSubviews;
       [self _updateRemoveClippedSubviewsState];
     }

packages/react-native/React/Tests/Mounting/RCTViewComponentViewTests.mm

@@ -143,6 +143,26 @@ - (void)testUnmountAfterToggleOffCleansUpReactSubviews
   XCTAssertNil(child2.superview);
 }
 
+- (void)testRemoveClippedSubviewsIsKeptOnRecycledView
+{
+  RCTViewComponentView *view = [RCTViewComponentView new];
+  [view updateProps:makeViewProps(true) oldProps:ViewShadowNode::defaultSharedProps()];
+  [view prepareForRecycle];
+
+  // Reused for another view with removeClippedSubviews. Like the mounting layer
+  // does for an Insert, pass no old props: the view diffs against its own.
+  [view updateProps:makeViewProps(true) oldProps:nullptr];
+
+  UIView *child = [UIView new];
+  child.frame = CGRectMake(0, 400, 50, 50);
+  [view mountChildComponentView:(id)child index:0];
+
+  // Clipping is on, so the child is tracked and left for the clipping pass to attach.
+  XCTAssertNil(child.superview);
+  NSMutableArray *reactSubviews = [view valueForKey:@"_reactSubviews"];
+  XCTAssertEqual(reactSubviews.count, 1u);
+}
+
 #pragma mark - hitTest against non-invertible transforms (#50797)
 
 - (void)testHitTestReturnsNilForZeroScaleYView