The [Bug Report] el-tree component opens the lazy and check-strictly options. If the default-checked-keys is not empty, the state of the father child node or the correlation between them.

[Jack-X-Yang]

Element UI version

2.4.4

OS/Browsers version

mac 10.13.5 / Chrome 67

Vue version

2.5.17-beta.0

Reproduction Link

https://jsfiddle.net/mmx38qxw/3898/

Steps to reproduce

el-tree 组件开启 lazy 和 check-strictly 选项，default-checked-keys 不为空。如果父结点未被选中，子结点在 default-checked-keys 中，展开父结点，父结点会被选中。

What is Expected?

父子结点的选中状态不关联

What is actually happening?

父子结点的选中状态关联

[element-bot]

Translation of this issue:

Element UI version
2.4.4

OS/Browsers version
Mac 10.13.5 / Chrome 67

Vue version
2.5.17-beta.0

Reproduction Link
https://jsfiddle.net/mmx38qxw/3898/

Steps to reproduce
The el-tree component opens the lazy and check-strictly options, and default-checked-keys is not empty. If the parent node is not selected and the child node is in default-checked-keys, the parent node is expanded, and the parent node is selected.

What is Expected?
The selected state of the parent and child node is not related

What is actually happening?
Selected state association of father and child node

[Jack-X-Yang]

解决方法：

https://github.com/ElemeFE/element/blob/dev/packages/tree/src/model/node.js#L318

reInitChecked(this);

改为

if (!this.store.checkStrictly) {
  reInitChecked(this);
}

[ziyoung]

@Jack-X-Yang 链接打开后，无法正常渲染。重新编辑了一下：https://jsfiddle.net/zhiyang/mmx38qxw/3931/
欢迎来提 pr。