Code block located after a list ends up in the list when rendering to CommonMark Markdown 1.2

When rendering to markdown/1.2, a code macro without language located right after a list is rendered as an indented code block. Once parsed back, the indented code block is considered as a continuation of the last list item (it becomes a paragraph in that item).

Steps to reproduce

Render the following xwiki/2.1 content to markdown/1.2 and parse it back:

* a

{{code}}x{{/code}}

Result

* a

    x

which is parsed back as a list item containing a and x.

Expected

The code block stays a top-level code block.