Play animation multiple times

I'm adding the shake animation to a password modal, when the password is wrong it will shake, and this works great so far, however, when I try to submit the wrong password again, it won't shake a second time. What would be the process to get this to work?

So far I have this code

```
ngfx-shake="modal.wrongPassword"
```

And in my controller on a wrong password I have this

```
++vm.wrongPassword;
```

How can I get something that makes this fire the animation multiple times in a row without having to have some sort of timeout to reset the value after the animation is done

Look at the angular-fx source code for the shake directive implementation, likely in a file like ngfx-shake.js or similar. Understand how the directive binds to the expression and triggers the animation. The issue is about resetting the animation state so it can be triggered again consecutively. Check if there's a flag or a timeout that needs to be cleared. Test by modifying the directive to allow repeated triggers without a reset delay.

Escrita pelo modelo de indexação a partir do texto da issue.