Plain text URLs are read back as links in CommonMark Markdown 1.2

When rendering the following xwiki/2.1 content to markdown/1.2 and parsing the result back:

https://x.org www.x.org a@b.org

(written so that the xwiki/2.1 parser doesn't create links, e.g. with escapes)

Expected: the same plain text.
Actual: the URLs and the email address are read back as links.