How to prevent overlay of TreeSelect Checkbox auto collapse when click child node

[ThucDinh]

In the website document of primeNg https://primeng.org/treeselect#checkbox

First I click Documents checkbox -> Home checkbox
[When I click Document -> Home](https://i.stack.imgur.com/L1flS.png)

Second I click Invoices checkbox

Result : The overlay auto collapse. That is a big error of prime but I don't find resolve for it