[Bug] Producer 不指定 WithTopics 无法正常启动

[yzletter]

Before Creating the Bug Report

• I found a bug, not just asking a question, which should be created in GitHub Discussions.

• I have searched the GitHub Issues and GitHub Discussions of this repository and believe that this is not a duplicate.

• I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

Programming Language of the Client

Go

Runtime Platform Environment

MacOS

RocketMQ Version of the Client/Server

v5.1.3/client.go

Run or Compiler Version

go 1.25.3

Describe the Bug

Producer 不指定 WithTopics

	producer, err = rmq_client.NewProducer(
		&rmq_client.Config{
			Endpoint:      common.EndPoint,                  
			Credentials:   &credentials.SessionCredentials{}, 
			NameSpace:     "",
			ConsumerGroup: "",
		},
		rmq_client.WithMaxAttempts(1),            
		// rmq_client.WithTopics(common.NormalTopic), 
	)

无法正常启动，会卡在

// wait syncSettings finish
	for !cli.inited.Load() {
		sugarBaseLogger.Infoln("wait for sync settings finish")
		time.Sleep(time.Second)
	}
	sugarBaseLogger.Infoln("sync settings finished")
	return nil

一直报

2025-12-28T11:21:40.709+0800    INFO    v5@v5.1.3/client.go:590 wait for sync settings finish

Steps to Reproduce

Producer 不指定 WithTopics 进行 Start

What Did You Expect to See?

正常启动

2025-12-28T11:27:59.264+0800    INFO    v5@v5.1.3/metric.go:337 metric is off, clientId=xxx
2025-12-28T11:27:59.264+0800    INFO    v5@v5.1.3/client.go:99  Executed command successfully   {"client_id": "xxx"}
2025-12-28T11:27:59.264+0800    INFO    v5@v5.1.3/metric.go:337 metric is off, clientId=xxx
2025-12-28T11:27:59.264+0800    INFO    v5@v5.1.3/client.go:99  Executed command successfully   {"client_id": "xxx"}
2025-12-28T11:28:00.265+0800    INFO    v5@v5.1.3/client.go:593 sync settings finished

What Did You See Instead?

2025-12-28T11:21:35.703+0800    INFO    v5@v5.1.3/client.go:590 wait for sync settings finish
2025-12-28T11:21:36.703+0800    INFO    v5@v5.1.3/client.go:590 wait for sync settings finish
2025-12-28T11:21:37.706+0800    INFO    v5@v5.1.3/client.go:590 wait for sync settings finish
2025-12-28T11:21:38.707+0800    INFO    v5@v5.1.3/client.go:590 wait for sync settings finish
2025-12-28T11:21:39.708+0800    INFO    v5@v5.1.3/client.go:590 wait for sync settings finish
2025-12-28T11:21:40.709+0800    INFO    v5@v5.1.3/client.go:590 wait for sync settings finish

Additional Context

No response

[lizhimins]

This is by design as intended.

[yzletter]

3q,sir