Can the </pre> tag start in a new line (possible previewer bug)?
Edit this post and look at the preview. Note how the preview incorrectly shows that the following preformatted text will be part of this bullet, and thus the next numbered item will be "2".
This is some preformatted output that requires more whitespace before it will actually be considered part of the same bullet point.
Also note that
Worldin the following is not shown as part of the preformatted block in the preview, but as shown on the live page it is correct.
- See that the last preformatted block in this answer has only one blank line, but when you edit the page you see three blank lines in the preview.
Edit: In all three cases, I think that the 'live' formatting is correct, and these are just three instances of the preview-during-edit giving a false account of what the outcome will be.