Modal transition animation not working after Angular 12 (ngx-bootstrap 6.1.0) to Angular 17 (ngx-bootstrap 12.0.0) migration

[danielmcm98]

My animation for my login modal relies on the fade.in class but after my migration it seems to be stuck on "show" so the transition does not occur. When I manually input "in" into the html via inspector I can see the transition occur correctly but it does not work on its own as it had done previously. The modal is still functional but it does not center itself in the screen it remains stuck on
.show {
display: block !important;
}

[andy840119]

Guess related to the #6547 ?
Also, there's a PR trying to fix that, but it's not fix the whole issue.