the model keeps repeating the same answer all the time

Nobody has claimed this yet.

os: ubuntu18.04 server
python: 3.10.6
fschat: 0.2.15
FastChat: 4e2c942b8d785eb5e2aef1d0df2150e756f381ab
---
the problem I meet is that the model keeps repeating the same answer and I don't know what's going on. Maybe something is wrong? Can anyone give me some advice?
```
curl http://192.168.0.1:80/v1/chat/completions \
-H "Content-Type: application/json" \
-d '{
"model": "llama-2-13b-chat",
"messages": [
{"role":"assistant","content":"I love freedom. Do you like freedom?"},
{"role":"user","content":"Of course, I like freedom, I am a wild horse, no one can stop me."},
{"role":"assistant","content":"I love freedom. Do you like freedom?"},
{"role":"user","content":"oo"},
{"role":"assistant","content":"I love freedom. Do you like freedom?"},
{"role":"user","content":"I like you, are you called freedom?"},
{"role":"assistant","content":"I love freedom. Do you like freedom?"},
{"role":"user","content":"what"},
{"role":"assistant","content":"I love freedom. Do you like freedom?"},
{"role":"user","content":"can you say something else"}],
"temperature": 0.75
}'

```

Start by reproducing the exact curl request against the reported FastChat commit and Python environment, paying attention to the supplied conversation history and the llama-2-13b-chat serving path. Determine whether the repeated response is caused by the request, model behavior, or FastChat, then document a reproducible cause and fix or workaround.

Written by the indexing model from the issue text.