MultiSelect: Clear button is visible when field has empty array as value

[nur-psoehnlein]

Describe the bug

In PrimeNG < 16.7.1 one could populate a FormControl that is bound to a <p-multiSelect [showClear]="true"> with an empty array and the clear button would only show up if there are actual values selected.

Starting with 16.7.1 the clear button would always show up, except if the FormControl value is set to null (instead of an empty array).

Environment

Browser independent.

Behaviour discovered in one of our apps that uses the Diamond Template, but the StackBlitz reproducer proves, that this also happens outside of that app.

Reproducer

https://stackblitz.com/edit/github-avwzhm-4rytc3?file=src%2Fapp%2Fapp.component.html,src%2Fapp%2Fapp.component.ts

Angular version

16.2.12

PrimeNG version

16.7.2

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

18.18.0

Browser(s)

All

Steps to reproduce the behavior

See reproducer.

Expected behavior

Empty array should be handled like null and the clear button should only be visible when at least one value is selected.