[Bug]模型选择为deepseek，但回答是GPT4

### 📦 部署方式

Vercel

### 📌 软件版本

2.15.8/2.16.0

### 💻 系统环境

Windows

### 📌 系统版本

11

### 🌐 浏览器

Chrome

### 📌 浏览器版本

最新

### 🐛 问题描述

我导出的面具文件，可以看出模型为deepseek，包括全局设计也是deepseek，但是当我用这个面具，去问你是谁你什么模型时，回答是Gpt4？这是为什么？
我使用的密钥，包括服务商、模型地址、自定义模型名，均为deepseek
{"id":"SO1YQzcJkPHrOM5UVpvYH","avatar":"gpt-bot","name":"论文","context":[{"id":"wrPYciF8Z7FAt3mK88FJw","date":"","role":"user","content":"xxxxxxx"}],"syncGlobalConfig":false,"modelConfig":{"model":"deepseek-chat","providerName":"DeepSeek","temperature":0.5,"top_p":1,"max_tokens":10000,"presence_penalty":0,"frequency_penalty":0,"sendMemory":true,"historyMessageCount":10,"compressMessageLengthThreshold":1000,"compressModel":"deepseek-reasoner","compressProviderName":"DeepSeek","enableInjectSystemPrompts":true,"template":"{{input}}","size":"1024x1024","quality":"standard","style":"vivid"},"lang":"cn","builtin":false,"createdAt":1740029024061,"plugin":[]}

### 📷 复现步骤

_No response_

### 🚦 期望结果

_No response_

### 📝 补充信息

_No response_