MaxKless

@aitboudad After reading the other issue again, I don't really see how a `showValidation` extra would fix #2385. Can you explain?

Any thoughts on this, @aitboudad ?

> instead of making it for testing purpose only, I'd prefer to provide a way to define `presets` through `FormlyPresetModule `. For naming we could use `forRoot` or `withConfig`. Makes...

Okay, I added a way to declare presets through the `FormlyPresetModule`. The demo component test isn't really necessary anymore because it's now `forRoot` instead of `forTesting`. I still think it...

Hey @aitboudad now that #3256 is merged, I would like to start on this. Do you think it's a good idea?

Yeah sure actually. There's no props converter yet, right? Let me know what you have in mind for schematics.

Have you figured out a solution for this problem? Resetting the form group seems like the most obvious solution. I'm not 100% sure what the intended behavior is here, and...

I think creating a new `FormGroup` is a bad idea as that will also mess with stuff like `valueChanges`. I don't know about clearing each `FormControl`. I often use changing...

@aitboudad ok makes sense, removing the fields that disappear after new fields are loaded seems like the right solution - but somewhat complicated. I would like to try and contribute...

@aitboudad I just want to say that my usage of formly would run into some issues if you deprecate this. In extended field types, its very useful to have the...