Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

Prerequisites

• I'm using the latest version of Docusaurus.
• I have tried the npm run clear or yarn clear command.
• I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
• I have tried creating a repro with https://new.docusaurus.io.
• I have read the console error message carefully (if applicable).

Description

Two URLs containing a file path to the same document will be rendered differently depending on if the link text contains a line break or not.

Properly rendered url (points to website/docs/example)

[A link example](example.md)

Badly rendered url (points to website/example.md)

[A link
example](example.md)

Docusaurus version: 3.0.0

Reproducible demo

No response

Steps to reproduce

1. Create a link with a line break in it
2. Check how the URL is rendered

Expected behavior

Expected a URL to be rendered the same way as without the line break.

Actual behavior

A link points to website/example.md instead of website/docs/example

Your environment

• Public source code:
• Public site URL:
• Docusaurus version used: 3.0.0
• Environment name and version (e.g. Chrome 89, Node.js 18.2): Chrome 119, Node.js 18.2
• Operating system and version (e.g. Ubuntu 20.04.2 LTS): Ubuntu 20.04

Self-service

• I'd be willing to fix this bug myself.