Lists over 9 items long break with indented content

[FossPrime]

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The following html

<ol start="9">
<li>
	<p><strong>I came in like a wrecking ball</strong></p>
	<p><img src="https://upload.wikimedia.org/wikipedia/commons/b/bd/Test.svg" alt=""></p>
</li>
<li>
	<p><strong>I never hit so hard in love</strong></p>
	<p><img src="https://upload.wikimedia.org/wikipedia/commons/b/bd/Test.svg" alt=""></p>
</li>
</ol>

Should be converted to:

 9. **I came in like a wrecking ball**

    ![](https://upload.wikimedia.org/wikipedia/commons/b/bd/Test.svg)

10. **I never hit so hard in love**

    ![](https://upload.wikimedia.org/wikipedia/commons/b/bd/Test.svg)

But instead it's converted to this non-commonmark compliant code:

9.  **I came in like a wrecking ball**
    
    ![](https://upload.wikimedia.org/wikipedia/commons/b/bd/Test.svg)
    
10.  **I never hit so hard in love**
    
    ![](https://upload.wikimedia.org/wikipedia/commons/b/bd/Test.svg)

Which creates a code_block instead of regular text and images because of the following CommonMark spec:

• https://github.com/commonmark/commonmark-spec/blob/499ebbad90163881f51498c4c620652d0c66fb2e/spec.txt#L103-L117
• Discussion: Markdown using code blocks not indented text for element numbers with three digits or more markdown-it/markdown-it#800 (comment)

Proposed solution

Remove whatever is adding the unwanted indentation between the list number and the list title. If this is intentional indentation, then move it to the beginning of the line, not between the list item.

That currently breaks 14 tests:

not ok 103 should be equal
not ok 104 should be equal
not ok 105 should be equal
not ok 106 should be equal
not ok 107 should be equal
not ok 108 should be equal
not ok 115 should be equal
not ok 116 should be equal
not ok 119 should be equal
not ok 120 should be equal
not ok 127 should be equal
not ok 128 should be equal
not ok 139 should be equal
not ok 140 should be equal

Additional notes:

• The strong emphasis ** is not needed to reproduce the problem.
• A space before the 9 looks nice, but isn't absolutely necessary in my testing
• Offending code:

  turndown/src/commonmark-rules.js

  Line 74 in ef41a54

  prefix = (start ? Number(start) + index : index + 1) + '. '