Setup collapsing of mounting instructions as disabled by default

Summary:
This diff updates the configuration of collapsing of mounting instructions to be disabled by default (in case the user didn't get any value from the server)

Changelog: [internal]

Reviewed By: JoshuaGross

Differential Revision: D18411934

fbshipit-source-id: 21f9ca525c28134800e929407c5a1e29a84de68e

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/Binding.cpp

@@ -236,9 +236,9 @@ void Binding::installFabricUIManager(
   // Keep reference to config object and cache some feature flags here
   reactNativeConfig_ = config;
   shouldCollateRemovesAndDeletes_ = reactNativeConfig_->getBool("react_fabric:enable_removedelete_collation_android");
-  // TODO T56932267: re-enable collapsing of mounting instructions using
-  // reactNativeConfig_->getBool("react_fabric:enabled_collapse_delete_create_mounting_instructions");
-  collapseDeleteCreateMountingInstructions_ = false;
+  collapseDeleteCreateMountingInstructions_ = reactNativeConfig_->getBool(
+      "react_fabric:enabled_collapse_delete_create_mounting_instructions");
+  ;
 
   disablePreallocateViews_ = reactNativeConfig_->getBool("react_fabric:disabled_view_preallocation_android");
 

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/Binding.h

@@ -105,7 +105,7 @@ class Binding : public jni::HybridClass<Binding>, public SchedulerDelegate {
 
   std::shared_ptr<const ReactNativeConfig> reactNativeConfig_{nullptr};
   bool shouldCollateRemovesAndDeletes_{false};
-  bool collapseDeleteCreateMountingInstructions_{true};
+  bool collapseDeleteCreateMountingInstructions_{false};
   bool disablePreallocateViews_{false};
 };