[Bug]: Error while working with array data in request

[chaikivskyi]

Description

When sending the include query parameter as a array of strings(e.g. ?include[]=metadata), validation fails with the following error:

Cannot use param value "metadata". JSON array expected.

Current validation rules

$request->validate([
    'include' => ['sometimes', 'array'],
    'include.*' => ['string', Rule::in(['metadata'])],
]);

Observed result

The UI shows a validation error even though metadata is an allowed value.

How to reproduce the bug

Use this request validaiton rules

$request->validate([
    'include' => ['sometimes', 'array'],
    'include.*' => ['string', Rule::in(['metadata'])],
]);

Package Version

0.13.10

PHP Version

8.4

Laravel Version

12

Which operating systems does with happen with?

Linux

Notes

No response