I was doing some QAing of the latest release and noticed that when I followed these steps the body didn't autofill as I expected:

1. Made a single commit with a title and body: git commit -m "Title" -m "Body" --allow-empty
2. gh pr create
3. accepted auto filled title
4. Enter to skip
5. Submit

The resulting PR was missing the body:

When I did the same process, and used e to view it in the editor first, it worked. I would expect to be able to use enter to skip and it would still autofill

Let me know if I can provide any more context!