Lists with invalid starting list depth are ignored:
  setup:
    setHtmlType: xhtml
  input: |
    ## Red
    ## Green
    ## Blue

    ## Red

    # Red
    ## Green
    # Blue
  expect: |
    <p>## Red<br />
    ## Green<br />
    ## Blue</p>

    <p>## Red</p>

    <ol>
    	<li>Red
    	<ol>
    		<li>Green</li>
    	</ol></li>
    	<li>Blue</li>
    </ol>