CascadeSelect: optionGroupChildren doesn't work in string type

[yuugou727]

Describe the bug

Not sure it is wrong documentation or this feature should be fixed.

Document shows that the prop optionGroupChildren accepts both string and string[]. I have an option tree. Each layer has its children in children key. So I assigned :optionGroupChildren="'children'" but CascadeSelect was broken. It works only when I change it to ['children', 'children', 'children'].

Reproducer

https://stackblitz.com/edit/cd7uiz?file=src%2FApp.vue,src%2FmockTree.js

PrimeVue version

3.43.0

Vue version

3.x

Language

ES6

Build / Runtime

Vite

Browser(s)

No response

Steps to reproduce the behavior

Switch :optionGroupChildren between 'children' and ['children', 'children', 'children'].

Expected behavior

CascadeSelect optionGroupChildren should accept string when option tree has same children key in each layer.

[Sanjayashok2512]

how to dynamically generate the optionGroupChildren
my 1st parent have 3 nested children
my 2nd parent have 2 nested children
when i click the 1st parent the optionGroupChildren will be as ["children","children","children"]
when i click the 2nd parent optionGroupChildren will be as ["children","children"] will be update as this
how to do?????