proForm提交按钮的连点🐛[BUG]

提问前先看看：

https://github.com/ryanhanwu/How-To-Ask-Questions-The-Smart-Way/blob/main/README-zh_CN.md

### 🐛 bug 描述
proForm自带的submit事件，如果速度够快的话，可以执行两次，虽然已经加了loading但是有时候还是可以的

### 📷 复现步骤

### 🏞 期望结果

### 💻 复现代码

### © 版本信息

- ProComponents 版本: [e.g. 4.0.0]
- umi 版本
- 浏览器环境
- 开发环境 [e.g. mac OS]

### 🚑 其他信息

The report concerns ProForm's submit event and says rapid clicks can trigger it twice, but it provides no reproduction, version, browser, code sample, file, or test. Start by obtaining a minimal reproduction and locating the ProForm submit implementation. Done means rapid clicks result in only one submission while loading.

Written by the indexing model from the issue text.