TreeSelect: expandedKeys not working

[AericN]

Describe the bug

When passing 'expandedKeys' to TreeSelect it doesn't expand the specified key. I pass the data as expandedKeys="{'1':true}". This functionality works when the component is a Tree but not as TreeSelect. Is there a different way to do it?

Reproducer

https://stackblitz.com/edit/cynavd-c9cvw9?file=src%2FApp.vue

PrimeVue version

3.50.0

Vue version

3.x

Language

ES6

Build / Runtime

Vite

Browser(s)

Chrome Version 126.0.6478.116

Steps to reproduce the behavior

Create TreeSelect component > try to set expandedKeys field

Expected behavior

When setting the expandedKeys field on a TreeSelect component the specified key should be expanded.