[Bug]: stop_sequences is applied to both reasoning_content and content

[tonyaw]

Your current environment

The output of `python collect_env.py`

Your output of `python collect_env.py` here

🐛 Describe the bug

I'm using v0.7.3 with QwQ 32B.
It looks like vllm uses stop_sequences to truncate both reasoning_content and content.
If vllm truncates reasoning_content, there will no content returned.
It is not expected, and stop_sequences shall be only applied to content.

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[tianyunzqs]

same problem. when I remove the stop words, output is normal.
#14170

[gaocegege]

It should be a bug in reasoning outputs.

[gaocegege]

It will be resolved in #14550

[ComposerKevin]

It will be resolved in #14550

Is this patch available in v0.8.0?

[gaocegege]

@ComposerKevin No, it is not merged.

[gaocegege]

Closed by accident. It is not fixed now. Ref #14550