[Bug] PHP Markdown (Extra) generates invalid HTML for code blocks

[Milian Wolff]

PHP Markdown v 1.0.1i and PHP Markdown Extra v 1.1.5 generate invalid HTML for 
code blocks

Take this input:

    paragraph
  
        codeblock

Markdown will generate:

    <p>paragraph</p>
    
    <pre><code>codeblock
    </pre></code>

Notice the wrong position of the closing code tag.
-- 
Milian Wolff
http://milianw.de