animation leave not work

[SimonAdamPottier]

Environment

• NativeScript-Angular: 12.2.0
• Angular: 12.2.0

Describe the bug
:leave or * => void not working

To Reproduce
`import {animate, style, transition, trigger} from '@angular/animations';

export const fadeInOutAnimation = trigger('fadeInOut', [
// OK
transition(':enter', [
style({opacity: 0}),
animate('3s linear', style({opacity: 1}))
]),
// KO
transition(':leave', [
style({opacity: 1}),
animate('3s linear', style({opacity: 0}))
])
]);`

Expected behavior

Await before removing element from DOM

[SimonAdamPottier]

Here is a temporary trick:

Don't use ngIf. repalce it by hidden and a variable triggered by animation start and done

<GridLayout [@fadeinout]="openCloseBooleanVar" (@fadeinout.start)="isVisibleBooleanVar= true" (@fadeInOut.done)="isVisibleBooleanVar = openCloseBooleanVar" [hidden]="!isVisibleBooleanVar">

then replace :enter and :leave by * => true and * => false

Really ugly solution but it works