Bug: getSegments() returns an array with 2 empty strings when accessing /

[includebeer]

I have created a filter named 'Localize' in my CI4 app. In the before() function I call getSegments() on the request object. If I go to a URL containing some segments, like domain.com/fr or domain.com/fr/blog it work as expected. getTotalSegments will return 1 or 2, and getSegments will return an array with 'fr' or with 'fr and 'blog'.

The problem is when I go to the root of the website (domain.com), getTotalSegments will return 2 and getSegments will return an array containing 2 empty string:

DEBUG - 2020-04-12 16:27:23 --> ---- Filter Localize ----
DEBUG - 2020-04-12 16:27:23 --> getPath() = /
DEBUG - 2020-04-12 16:27:23 --> getTotalSegments() = 2
DEBUG - 2020-04-12 16:27:23 --> getSegments() = Array
(
    [0] => 
    [1] => 
)

DEBUG - 2020-04-12 16:27:25 --> ---- Filter Localize ----
DEBUG - 2020-04-12 16:27:25 --> getPath() = fr
DEBUG - 2020-04-12 16:27:25 --> getTotalSegments() = 1
DEBUG - 2020-04-12 16:27:25 --> getSegments() = Array
(
    [0] => fr
)

DEBUG - 2020-04-12 16:27:33 --> ---- Filter Localize ----
DEBUG - 2020-04-12 16:27:33 --> getPath() = fr/blog
DEBUG - 2020-04-12 16:27:33 --> getTotalSegments() = 2
DEBUG - 2020-04-12 16:27:33 --> getSegments() = Array
(
    [0] => fr
    [1] => blog
)

This is with CodeIgniter 4.0.2, PHP 7.4.2, Apache server (MAMP) on macOS.

Expected behavior would be 0 segments for URI /

DEBUG - 2020-04-12 16:27:23 --> ---- Filter Localize ----
DEBUG - 2020-04-12 16:27:23 --> getPath() = /
DEBUG - 2020-04-12 16:27:23 --> getTotalSegments() = 0
DEBUG - 2020-04-12 16:27:23 --> getSegments() = Array
(
)

[samsonasik]

can be closed in favor of #2824