vue2.x, tree-select how to use halfChecked for grandfather Node

[efrontend]

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

Version

1.7.8

Environment

vue2.7.x

Reproduction link

https://1x.antdv.com/components/tree-select-cn#components-tree-select-demo-asynchronous-loading

Steps to reproduce

It's kind of like a special requirement, not a bug

What is expected?

I want to know how to support this

What is actually happening?

my component data has an 'all' selection, then i disabled the secondLevel that can't be selection, so it give me a problem is: when i selected third level, the first level not be halfChecked, please give me help

[efrontend]

@tangjinzhou 老板，有空帮看看

[github-actions]

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