Markdown not escaping link id

[Andy Fragen]

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I want to show what my pre-Markdown rendered code looks like so I put it
all after 4 spaces. That should give me a <pre><code> block. Everything
renders, or doesn't render fine, except for the line..

    [1]: http://daringfireball.net

It doesn't work in the dingus either. Any ideas?

-- 
Andy Fragen