CRLF line endings in Markdown files creates bogus output

[robUx4]

When this file is stored with Linefeed (LF) line ending, it produces a (mostly) correct output:

{mainmatter}

Test

{backmatter}

When stored with CRLF (the Windows way) it produces bogus output:

<?xml version="1.0" encoding="utf-8"?>
<!-- name="GENERATOR" content="github.com/mmarkdown/mmark Mmark Markdown Processor - mmark.miek.nl" -->

</front>

<middle>
<t>

Test

</t>kmatter}

</middle>

The </front> with no beginning exists in both version.

[miekg]

see https://github.com/gomarkdown/markdown/issues/154 and https://github.com/gomarkdown/markdown/issues/137