This has NOT been "fixed."
However - if you post a mobile twitter link, it displays properly:
If you post the same link, without specifying "mobile," it does not:
So modify the link just above, so that it reads "mobile.twitter.com" instead of "twitter.com" (between the first two front-slashes), and it will work.
Yeah, I know some of us won't bother, and that's fine. But if you really want your post to show the actual tweet, this is how you can make it work.