scroll嵌套scroll后不会触发@scroll事件

Version

1.12.38

Reproduction link

https://jsbin.com/zifoyijepe/1/edit?html,js,output

Steps to reproduce

1,最外层是竖向的scroll 2.里面嵌套一个横向的scroll 3，横向的scroll里元素触发点击事件后没有触发竖向的@scroll事件

What is expected?

不会影响外层的scroll事件

What is actually happening?

Dependencies Version

vue: 2.6.14 better-scroll: 2.4.2