微调后的模型回答带有很多重复[Bug]
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- Python
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Description
### Checklist
- [ ] 1. I have searched related issues but cannot get the expected help.
- [ ] 2. The bug has not been fixed in the latest version.
### Describe the bug
启动微调后的模型，回答带有很多重复（微调的internlm2-chat-7b），对模型提的问题是：《快乐星球》的主演有哪些？前面正常，后面就开始重复（经多次提问，出现这种重复的概率不大）：
### Reproduction
lmdeploy serve api_server /root/autodl-tmp/projects/LLM/fine_tuning/7b/internlm2-chat-7b-merge --server-name 0.0.0.0 --server-port 6006 --tp 1 --session-len 128000 --rope-scaling-factor 2 --cache-max-entry-count 0.25
### Environment
```Shell
python：3.10
显卡：4090
cuda：12.2
lmdeploy：0.2.3
xtuner：0.1.14.dev0
```
### Error traceback
_No response_
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