Links are relative to the wrong level, sometimes

[elia]

To Reproduce

Open this pages:

• https://guides.solidus.io/advanced-solidus/promotions-system
• https://guides.solidus.io/advanced-solidus/promotions-system/
• https://guides.solidus.io/advanced-solidus/promotions-system/index.html

go to the link at the bottom of the page pointing toward How to use a custom promotion adjuster

sometimes it will generate a url relative to /advanced-solidus rather than the root:

https://guides.solidus.io/how-tos/how-to-use-a-custom-promotion-adjuster/

vs.

https://guides.solidus.io/advanced-solidus/how-tos/how-to-use-a-custom-promotion-adjuster

Screenshots

Additional context

Reported by a user and reproduced, although not consistently.