[Bug Report] [Bug Report] [tree, multiple selection] In IE browser, the selected parent and child nodes are not correctly selected.

[AesonLuo]

Environment

win7 IE11.0.9600.19230IS

Reproduction link

https://www.iviewui.com/components/tree

Steps to reproduce

1、先点击父节点选中（此时父节点和其所有子节点都被选中）
2、点击其中一个子节点取消选中（此时父节点是半选中状态）
3、点击父节点取消所有选中

What is expected?

父节点以及其所有子节点的复选框都不被选中

What is actually happening?

父节点的复选框被选中了，其所有子节点的复选框都不被选中

[iview-bot]

Translation of this issue:

Environment

Win7 IE11.0.9600.19230IS

Reproduction link

https://www.iviewui.com/components/tree

Steps to reproduce

1. Click on the parent node to select (at which point the parent node and all its children are selected)
2. Click on one of the child nodes to deselect (when the parent node is semi-selected)
3. Click on the parent node to cancel all checks

What is expected?

Checkboxes for parent nodes and all their children are not selected

What is actually happening?

The check box for the parent node is selected, and the check boxes for all its children are not selected.

[AesonLuo]

[iview-bot]

Hello, this issue has been closed because it is not a bug, but a usage problem, please consult other communities.