nacos服务发现python SDK和curl获取的内容不一致

[Young-LLL-6130]

nacos version: nacos-server-3.2.0
nacons-python-sdk version: 3.0.4

描述：nacos python sdk通过调用list_instances接口获取的结果有问题，不是实际的注册结果；通过curl查询的结果是准确的，和前端页面显示一致，且是实际的注册结果

============================ python sdk服务获取结果 ========================
python代码：
instances = await self.naming_client.list_instances(
ListInstanceParam(service_name='auth_service', healthy_only=None))

print(f"Get instances of {NACOS_DATA_ID}: {instances}\n")

运行结果：
(venv) root@debian12:/usr/local/src/nacos-python# python3 main.py
INFO: Started server process [2885]
INFO: Waiting for application startup.
Service auth_service registered to Nacos
No config found in Nacos
Discovered services: count=1 services=['auth_service']

Get specific services: name='auth_service' groupName='DEFAULT_GROUP' clusters='' cacheMillis=10000 hosts=[Instance(instanceId='192.168.1.87#8021#DEFAULT#DEFAULT_GROUP@@auth_service', ip='192.168.1.87', port=8021, weight=1.0, healthy=True, enabled=True, ephemeral=True, clusterName='DEFAULT', serviceName='DEFAULT_GROUP@@auth_service', metadata={'a': 'b'})] lastRefTime=1776406673165 checksum='' allIps=False reachProtectionThreshold=False jsonFromServer=''

Get instances of auth_service: [Instance(instanceId='192.168.1.87#8021#DEFAULT#DEFAULT_GROUP@@auth_service', ip='192.168.1.87', port=8021, weight=1.0, healthy=True, enabled=True, ephemeral=True, clusterName='DEFAULT', serviceName='DEFAULT_GROUP@@auth_service', metadata={'a': 'b'})]

INFO: Application startup complete.
INFO: Uvicorn running on http://0.0.0.0:8001 (Press CTRL+C to quit)

============================ curl 服务获取结果 ========================
root@debian12:/usr/local/src/nacos# curl -X GET 'http://192.168.1.87:8848/nacos/v3/client/ns/instance/list?serviceName=auth_service'
{"code":0,"message":"success","data":[{"instanceId":"192.168.1.87#8021#DEFAULT#DEFAULT_GROUP@@auth_service","ip":"192.168.1.87","port":8021,"weight":1.0,"healthy":true,"enabled":true,"ephemeral":true,"clusterName":"DEFAULT","serviceName":"DEFAULT_GROUP@@auth_service","metadata":{"c":"d"},"instanceHeartBeatInterval":5000,"instanceHeartBeatTimeOut":15000,"ipDeleteTimeout":30000}]}root@debian12:/usr/local/src/nacos#
root@debian12:/usr/local/src/nacos#

============================ 前端显示结果 ========================

[Young-LLL-6130]

主要关注元数据不一致问题，python sdk查询的结果是很久之前注册过的结果，然而通过删除nacos再重新解压启动，这个数据依然存在，即使没有任何注册，前端服务查询也根本没有这个记录。 @

[Young-LLL-6130]

是缓存导致的，这个问题在nacos-server-2.5.2中不存在，但是在nacos-server-3.2.0中会有，需要在nacos-server-3.2.0对应的python客户端中的ClientConfigBuilder中添加.load_cache_at_start(False)，否则永远只会读取缓存，不管怎么调用接口获取都只读缓存。