Lemmy Support

I was under the impression that there was no backend support for cross-posts in Lemmy -- I thought that the "proper" way to cross-post was to click the cross post button

which would result in a new "create post" with a link to the original post, and the body in markdown quotations (which is a rather ugly solution) which, for example, looks like this:

with no reference on the original

But I then started seeing the following:

• Lemmy UI:
• Thunder:

How does one create these nicer cross-posts?