404 Error in pathinfo mode

[viosion]

---

name: Bug report
about: Help us improve the framework by reporting bugs!

---

Describe the bug
When set uriProtocol = 'Pathinfo'
Close debug, got 404 error;

line 578 in Router.php

// '/home/index' $segments = [0=>'', 1=>'home', 2=>'index']
protected function validateRequest(array $segments)
{
$segments = array_filter($segments); // $segments = [1=>'home', 2=>'index']

Because array_filter() gets the result array, the index is not updated. So pathinfo '/home/index'([0=>'', 1=>home, 2=>index]) gets [1=>home, 2=>index], there is no $segments[0]; Controller cannot be found, resulting in 404;

line 587 in Router.php
`

$this->directory . ucfirst($this->translateURIDashes === true ? str_replace('-', '_', $segments[0]) : $segments[0]

`
ErrorException
Undefined offset: 0
SYSTEMPATH/Router/Router.php at line 587

Then add a line below:
$segments = array_filter($segments);
$segments = array_values($segments);
May solve this problem;

CodeIgniter 4 version
Codeigniter 4.0.0-beta.2

Affected module(s)
Router

Expected behavior, and steps to reproduce if appropriate

Context

• OS: [Mac OS 10.14.4]
• Web server [Nginx 1.13.2]
• PHP version [7.2.14]