Investigating a possible Valitron bug

test_is_blocked.php

<?php

require 'vendor/autoload.php';

use Valitron\Validator;

function validate($data, $rules)
{
    $v = new Validator($data);
    $v->rules($rules);

    return $v->validate();
}

$data = ['foo' => '', 'bar' => '', 'baz' => 'test'];
$rules = ['required' => 'foo'];

if (validate($data, $rules)) {
    echo "It passes" . PHP_EOL;
} else {
    echo "It's blocked" . PHP_EOL;
}

test_passes.php

<?php

require 'vendor/autoload.php';

use Valitron\Validator;

function validate($data, $rules)
{
    $v = new Validator($data);
    $v->rules($rules);

    return $v->validate();
}

$data = ['foo' => '', 'bar' => '', 'baz' => 'test'];
$rules = ['required' => 'foo'];
$rules = ['required' => 'baz'];

if (validate($data, $rules)) {
    echo "It passes" . PHP_EOL;
} else {
    echo "It's blocked" . PHP_EOL;
}