Sorry, cannot reasonably report this in any more proper manner in the hurry.

The character & somehow gets garbled here when viewed through Lemmy:

At a glance, the comment in question seems to use a left-quote “ + right-quote ” pair rather than the standard single-character double quotation mark ".

PieFed properly renders all 3 of these quotes while Lemmy only handles the most basic type.

So this is not a PieFed bug, but rather a Lemmy one?

Edit: Seems like this is a lemmy problem in general with quotation marks in the spoiler summary block. If you are on a lemmy instance and put this into the markdown, it will render the same way:

<details><summary>&quot;Quotes&quot; get garbled</summary>

That summary above is messed up.  

</details>

So, this isn't a PieFed issue at all, but something to do with lemmy's markdown to html conversion improperly url-escaping quotes when it is in a <summary> tag.

Ok, I was really confused about this since I couldn't reproduce this at all. However, this seems to only apply to quotes that are in a spoiler header. I made a codeberg issue for this.