### 联系方式
doufu@orca-tech.com.cn
### MaxKB 版本
v1.0.4 (build at 2024-04-19T16:5…9, commit: 7c001221)
### 问题描述
调用对话API，当请求body中stream为true时，输出的最后一条消息中，携带一个错误信息。
若将stream改为false，则只会输出错误信息而不输出正确信息。
### 重现步骤
发起对话API请求
### 期待的正确结果
输出正确结果
### 相关日志输出
```shell
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "202", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "4", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "-", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "04", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "-", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "21", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": " ", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "08", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": ":", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "00", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": ":", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "00", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "", "is_end": false}
data: {"chat_id": "fb772c90-fff3-11ee-9db6-0242ac11000c", "id": "6092b22a-fff4-11ee-8467-0242ac11000c", "operate": true, "content": "\u5f02\u5e38['\u201capplication-623b8c7c0dad590b13f1f70c6514d33c\u201d is not a valid UUID.']", "is_end": true}
```
### 附加信息
stream为true时的输出：
----
stream为false时的输出：
