.njk or .html includes in .md would have empty lines processed as <p> inside html areas

[terpimost]

Operating system

linux

Eleventy

3

Describe the bug

I have .md file inside of which I have an include:

{% include 'promo.html' %}

my promo.html content would be something like:

<div>
<h4>My promo</h4>
<script>
function(){
//empty line here makes elevent paste <p>

//some other thing
}
</script>
</div>

I thought markdown shouldn't process html sections, am I wrong?
I do use custom markdown It instance and have:

    const options = {
        html: true,
        typographer: true,
        linkify: true,
    };

and my eleventy config sets template language like this:

return {
        markdownTemplateEngine: "njk",
        htmlTemplateEngine: "njk",
    }

Reproduction steps

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See an error

Expected behavior

No response

Reproduction URL

No response

Screenshots

No response

[terpimost]

It feels like doesn't matter the extension of my include it is processed as .md file.