Update of MenuItem's 'expanded' property not working

[marcioluish]

Describe the bug

This Stackblitz link was forked from PrimeNG 16.9.1 Multiple PanelMenu.

In that, a button was added to change Edit and Archieve submenus as the following:

• Labels = 'Sub Item Title'
• expanded = false

However this isn't working, at least compared to PrimeNg version 16.0.2, which you can find a Stackblitz link here (just changed PrimeNg version in package.json)

Steps to replicate issue at Stackblitz (both of two links above):

1. Expand Events menu
2. Expand both Edit and Archieve submenus
3. Click on Change button
4. Expected: both Edit and Archieve submenus labels changed to Sub Item Text and both collapsed

Before:

After:

I've noticed this, because we recently upgraded Angular and PrimeNg versions to ~16.3.0 in our project, and we had methods to handle expansion/collapse (mostly mngt of 'expanded'property) of 3rd and 4th menu levels, which were working fine in v15 & v16.0.2.

I don't know if in PrimeNG versions greather than 16.0.2, expansion was supposed to be handled differently, bc I couldn't find anything related.

I'd really appreciate if anyone could provide some support in this matter.

Cheers.

Environment

Angular 16.2.1 so as PrimeNg 16.3.1

Reproducer

No response

Angular version

16.2.1

PrimeNG version

16.3.1

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

20.5.0

Browser(s)

No response

Steps to reproduce the behavior

No response

Expected behavior

No response