So this is a weird bug. I was originally in this post on lemmy.world which goes to a post in !news@beehaw.org:

https://lemmy.world/comment/136483

https://beehaw.org/post/532471

The title and the post body changed from:

[LIVE THREAD] Donald Trump’s arraignment in Miami; his supporters expected to protest outside of courthouse

to this:

A body was found under the collapsed section of I-95 in Philadelphia

But the comments all stayed the same. At least, I didn’t notice any changes there or any loading in from different posts.

The content it got swapped with had to have come from this post: https://beehaw.org/post/533534

I only noticed the change in title and body when I scrolled back up from the comments.