Contextmenu in the tree component doesn't work.(version 1.x)

[yzqdev]

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

Version

1.7.3

Environment

windows v19043.1110 ; vue v2.6.14 ; chrome Edge/92.0.902.62

Reproduction link

Steps to reproduce

https://1x.antdv.com/components/tree-cn/#components-tree-demo-context-menu

The contextmenu does not work.

What is expected?

On right clicking the tree component ,contextmenu appears;

What is actually happening?

contextmenu doesn't appear;

[zkwolf]

组件库还没发新版

[scrapooo]

// v1.7.6 数据中加这个 可以解决
scopedSlots: {
    title: 'title',
  },

[tangjinzhou]

1.7.7

[github-actions]

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