non-ASCII characters are filtering out from URLs

[iolpltuisciaoln]

Setup and configuration

"name": "mediawiki-mermaid",
"version": "8.5.0", - MediaWiki version:
PHP 7.4.10 (cli) (built: Sep 10 2020 14:00:50) ( NTS )
mysqld Ver 10.4.12-MariaDB-1:10.4.12+maria~bionic for debian-linux-gnu on x86_64 (mariadb.org binary distribution)

Issue

Link in code below

{{#mermaid:flowchart TD
 root("root") --> Leaf(Leaf)
 click Leaf "/wiki/Листик"
}}

bocomes : http://localhost/wiki/
not http://localhost/wiki/Листик