[I] [Bug] PushConsumer may cause consumption duplication in some scenarios due to concurrency issues. [rocketmq-client-cpp]

[via GitHub]

humkum opened a new issue, #479:
URL: https://github.com/apache/rocketmq-client-cpp/issues/479

   **BUG REPORT**
   
   1. Please describe the issue you observed:
   
   - What did you do (The steps to reproduce)?
   1. Start a consumer client c1.
   2. Start another consumer client c2 and immediately shut it down.
   3. Observe the consumption duplication of the consumer client c1.
   - What did you expect to see?
   There's no consumption duplication.
   - What did you see instead?
   The consumer client c1 duplicate consume the same message many times at the 
same timestamp.
   
   
![image](https://github.com/user-attachments/assets/7355e643-c6fe-46c8-90d1-7ba551092d62)
   
   
   4. Please tell us about your environment:
   
    - What is your OS?
   Ubuntu & CentOS
    - What is your client version?
   latest
    - What is your RocketMQ version?
   5.9
   4. Other information (e.g. detailed explanation, logs, related issues, 
suggestions on how to fix, etc):
   


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