依赖组件出现了多版本共存问题

[nuintun]

• I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

Steps to reproduce

安装依赖后查看依赖锁定文件，rc-tree 和 immutable 出现了多版本共存的现象，会间接造成打包尺寸增大！

What is expected?

不出现组件多版本共存

What is actually happening?

出现组件多版本共存

Environment	Info
antd	3.15.0
React	React 16
System	WIN10
Browser	Chrome 72

[afc163]

rc-tree

• https://github.com/react-component/tree-select/blob/4edf4367f7441e31d51ea3643a39b5386835213d/package.json#L58
• https://github.com/ant-design/ant-design/blob/master/package.json#L83

immutable

• https://github.com/react-component/editor-mention/blob/bdf5d9194c0896c3ede724c562e6f79f78d7af97/package.json#L65
• https://github.com/facebook/draft-js/blob/fc3549a869201cc5856b3800fdf2bd9d55451c20/package.json#L36

@zombieJ

[nuintun]

@afc163 又追了下，很多组件出现多版本共存，因为机制问题很难杜绝，不过还是希望可以尽量避免，
自己的库进行依赖同步，第三方库能尽量同步。

rc-animate

[afc163]

keep it alive