🐛 [Bug]: Tabs组件使用sticky属性，ios11报错

[JayHowe]

Which React Vant packages are impacted?

• [X] react-vant (React Vant core)
• [X] react-vant-icons(React Vant Icon)

What version of React Vant are you using?

2.0.0-alpha.47

Reproduce live demo(codesandebox or stackblitz)?

No response

Descripition

Tabs组件使用sticky属性，ios11报错：

具体代码： <Tabs sticky

<Tabs.TabPane>xxx</Tabs.TabPane>

报错:

TypeError: r is not a function. (In 'r()' 'r' is null) xxxx

[3lang3]

ios11吗？ 没设备复现，能帮忙定位下问题吗