[BUG] Use the rest API call to modify the group request. The group exists in MongoDB. However, the rest api prompts 1004

[ylx19931228]

OpenIM Server Version

3.8.1

Operating System and CPU Architecture

Linux (AMD)

Deployment Method

Source Code Deployment

Bug Description and Steps to Reproduce

使用rest API 调用 修改群组请求. MongoDB存在该群组.但是rest api 提示1004.
文档中提供描述: 字段选填可以不传. 目前im返回接口为1004，字段全部传入。也是1004

Screenshots Link

No response

[ylx19931228]

问题已找到, 该群无群主.导致的调用失败. 目前还未发现是那种操作导致的群主为空