PHPStan issue when the return type of Field::value is self

[ilampropoulos]

Issue When the return type of the value method is self, PHPStan gives this error:

for this code snippet that inherit your value method.

public function value($value): static
    {
        if (empty($value)) {
            $value = [];
        }

        return parent::value($value);
    }

PHPStan works correctly only when you change the return type from self to static, as I suggested in my PR. So, you need to change to static if you want the method to be compatible with subclasses.