Summary

This PR enables a performance optimization flag called `passChildrenWhenCloningPersistedNodes`. This change improves React Native's Fabric architecture by optimizing how it manages its internal ShadowTree, without introducing any user-facing behavioral changes.

Changes

Impact Areas

Files Changed

• packages/react-reconciler/src/ReactFiberReconciler.js
• packages/react-reconciler/src/ReactFiberHostConfig.js
• packages/react-native-renderer/src/fiber/ReactNativeFiberHostConfig.js