WP is redirecting instead of going to 404

Question

Why is wordpress redirecting to an existing page if the uri is staring like an existing page instead of redirecting to a 404 ?

Example, i have theses pages

mysite.com/aeroport

mysite.com/intralog

But if I go to

mysite.com/aeroport/intra

Instead of going to a 404, WP is redirecting me to the translated english version of intralog

mysite.com/en/intralog

Same if I do mysite.com/aeroport/medi, it's redirecting me to mysite.com/medias instead of a 404

I'm using polylang, I can't disable it, but all my other plugin are disabled.

Answer 1

Does this WPSE article help?

Looking at this article and similar, I'd recommend reading up on the purpose of this feature as you may not want to (fully) disable it.