[Appconfig] BREAKING CHANGE: az appconfig kv export: Update AZURE_APPCONFIG_FM_COMPATIBLE environment variable to default to False

src/azure-cli/azure/cli/command_modules/appconfig/_diff_utils.py

@@ -158,7 +158,7 @@ def serialize(obj):
             # State property doesn't make sense in feature flag version 2 schema beacuse of the added properties - variants, allocation, telemetry
             # The State property only exists in the CLI, we should move to showing enabled property instead as the other clients
             # As we move to showing the enabled property, we will show the state property in the CLI only if compatibility mode is true
-            env_compatibility_mode = os.environ.get("AZURE_APPCONFIG_FM_COMPATIBLE", True)
+            env_compatibility_mode = os.environ.get("AZURE_APPCONFIG_FM_COMPATIBLE", False)
             compatibility_mode = str(env_compatibility_mode).lower() == "true"
 
             feature = map_keyvalue_to_featureflag(obj, hide_enabled=compatibility_mode)

src/azure-cli/azure/cli/command_modules/appconfig/_kv_export_helpers.py

@@ -184,7 +184,7 @@ def __export_features(retrieved_features, naming_convention):
     )
     feature_flags_keyword = FeatureFlagConstants.FEATURE_FLAGS_KEY
     try:
-        env_compatibility_mode = os.environ.get("AZURE_APPCONFIG_FM_COMPATIBLE", True)
+        env_compatibility_mode = os.environ.get("AZURE_APPCONFIG_FM_COMPATIBLE", False)
         compatibility_mode = str(env_compatibility_mode).lower() == "true"
         if compatibility_mode:
             feature_reserved_keywords = FeatureManagementReservedKeywords.get_keywords(