HTML entity is mangled

[Porges]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and couldn’t find anything (or linked relevant results below)

Affected packages and versions

at least 15.0.1, 14.0.2

Link to runnable example

• Markdown–HTML: https://codesandbox.io/p/sandbox/github/remarkjs/.github/tree/main/sandbox-templates/remark-rehype-with-vite
• Markdown–Markdown: https://codesandbox.io/p/sandbox/github/remarkjs/.github/tree/main/sandbox-templates/remark-with-vite

Steps to reproduce

Create a Markdown file:

# test

片󠄃

Run remark on it.

Expected behavior

Output should preserve the HTML entity or change it to non-entity form.

Actual behavior

HTML entity is changed to a completely different character:

# test

片ă

Note that I don't recall this happening with past versions, so it might have been introduced (fairly) recently.

This will be a bug in mdast-util-{from,to}-markdown, but I’m not sure which.

Runtime

Node v16

Package manager

npm 8

OS

Windows, Linux

Build and bundle tools

No response

[Porges]

This is also present when just using micromark:

import {micromark} from 'micromark';
console.log(micromark('片󠄃'));

> node test.mjs                                                                            
<p>片ă</p>

[Porges]

Sent a PR fixing this to the micromark repo: micromark/micromark#158

[wooorm]

Thanks!