[6.x] Rule::RequiredIf should be a remote rule

[bytestream]

Subject of the issue

Rule::RequiredIf was added in Laravel 6.x and can be used to provide more complex conditions than can be provided by required_if: string syntax.

https://laravel.com/docs/6.x/validation#rule-required-if

Your environment

• version of this package: 4.3.0
• version of Laravel: 6.18.41

Steps to reproduce

Validator::make($request->all(), [
    'role_id' => Rule::requiredIf($request->user()->is_admin),
]);

Expected behaviour

It should require an AJAX rule, it's not possible to do this on client side.

Actual behaviour

The rule always passes and is checked client side.

[timinigi]

Yes I have same issue on the latest v4.8.1, JsValidator acted really inconsistently I had no idea why, but after deep debugging I found out it was for this very same issue. Please any fix would be appreciated.