[fix] setting disable_chat_template while passing prompt_token_ids led to response error #3511
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Jiang-Jia-Jun
approved these changes
Aug 21, 2025
Jiang-Jia-Jun
merged commit 1b399b9
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PaddlePaddle:release/2.1
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问题描述：
修复在传入 prompt_token_ids 且 messages 设为空列表时，设置 disable_chat_template 为 true 将导致 400 Bad Request 的问题
原因排查：
当设置 disable_chat_template 为 true 时，会取出 messages 的第一条消息作为 prompt；但在传入 prompt_token_ids 时，messages 可能是空列表，导致列表索引越界。
解决方法：
将 disable_chat_template 取首条 messages 的逻辑移到 prompt_token_ids 为空的分支，避免冲突