Search broken due to newline in news

[CheariX]

Have you checked that your issue isn't already filed?

• [X] I read through FAQ and searched through the past issues, none of which addressed my issue.
• [X] Yes, I have checked that this issue isn't already filed.

Bug description

See my details in #2450

How to reproduce the bug

Add markdown link to an inline news article

Edit: Initially, I thought this issue is caused to due markdown. But I was wrong, it occurs if the content has more than one line.

Error messages and logs

No response

What operating system are you using?

Not applicable (e.g. you're using GitHub Pages or other hosting)

Where are you seeing the problem on?

Running locally with Docker

More info

I think my report in a closed PR was overlooked. Therefore I created this issue.