Disable enableModuleArgumentNSNullConversionIOS by default (#51576)

Summary:
Pull Request resolved: #51576

This is causing some internal test failures for now, so disabling the behaviour to prevent further rollout.

Changelog: [iOS][Removed] Disable fix for #51103 until more testing can be done.

Differential Revision: D75320842

fbshipit-source-id: 39c115afd11e5b1aca6cdc1fc18ec7e83eb10382

Author: javache

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsDefaults.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<fcee66a9800d5b3b1105df73d33feea9>>
+ * @generated SignedSource<<07ea15d4fd3f3bc73c8f49cd24724caf>>
  */
 
 /**
@@ -71,7 +71,7 @@ public open class ReactNativeFeatureFlagsDefaults : ReactNativeFeatureFlagsProvi
 
   override fun enableMainQueueModulesOnIOS(): Boolean = false
 
-  override fun enableModuleArgumentNSNullConversionIOS(): Boolean = true
+  override fun enableModuleArgumentNSNullConversionIOS(): Boolean = false
 
   override fun enableNativeCSSParsing(): Boolean = false
 

packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsDefaults.h

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<c80be05a320b2cb0e78865492f503922>>
+ * @generated SignedSource<<6692978a1497fa9e99d539511388c9fa>>
  */
 
 /**
@@ -124,7 +124,7 @@ class ReactNativeFeatureFlagsDefaults : public ReactNativeFeatureFlagsProvider {
   }
 
   bool enableModuleArgumentNSNullConversionIOS() override {
-    return true;
+    return false;
   }
 
   bool enableNativeCSSParsing() override {

packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js

@@ -300,7 +300,7 @@ const definitions: FeatureFlagDefinitions = {
       ossReleaseStage: 'none',
     },
     enableModuleArgumentNSNullConversionIOS: {
-      defaultValue: true,
+      defaultValue: false,
       metadata: {
         description:
           'Enable NSNull conversion when handling module arguments on iOS',

packages/react-native/src/private/featureflags/ReactNativeFeatureFlags.js

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<cbcc6da9a0d0652dddd99977690a258a>>
+ * @generated SignedSource<<4d96a5f9132ea827faeb183fe8bbf095>>
  * @flow strict
  * @noformat
  */
@@ -281,7 +281,7 @@ export const enableMainQueueModulesOnIOS: Getter<boolean> = createNativeFlagGett
 /**
  * Enable NSNull conversion when handling module arguments on iOS
  */
-export const enableModuleArgumentNSNullConversionIOS: Getter<boolean> = createNativeFlagGetter('enableModuleArgumentNSNullConversionIOS', true);
+export const enableModuleArgumentNSNullConversionIOS: Getter<boolean> = createNativeFlagGetter('enableModuleArgumentNSNullConversionIOS', false);
 /**
  * Parse CSS strings using the Fabric CSS parser instead of ViewConfig processing
  */