Closing document tags added, when code blocks contain closing body or html tag

[PRGfx]

Version(s) affected

5.1.1

Description

Codeblocks with closing </body> or </html> tags will add closing tags to the resulting document.

<pre><code>&lt;/body&gt;</code></pre>

```
</body>
```

</body>

or

```
</html>
```

</body></html>

The issue occurs only once, i.e. having multiple closing html tags will still return the whole document + only one </body></html>.

I guess it's somehow about how the HTML is saved. I can work around this with first replacing these tags with placeholders before conversion and replacing them back, but as long as I'm not sure, why this happens, it might occur for the next best element.

How to reproduce

echo -e '<pre><code>&lt;/body&gt;</code></pre>' | vendor/bin/html-to-markdown
echo -e '<pre><code>&lt;/html&gt;</code></pre>' | vendor/bin/html-to-markdown

<?php
include 'vendor/autoload.php';
$converter = new \League\HTMLToMarkdown\HtmlConverter();
echo $converter->convert('<pre><code>&lt;/html&gt;</code></pre>');