Wrong stand-alone long month form

[anatolyeltsov]

Which package?

@formatjs/intl-datetimeformat

Describe the bug

With polyfill-force the stand-alone full month name in ru locale is wrong:

new Intl.DateTimeFormat('ru', { month: 'long' }).format();
// 10 октября

new Intl.DateTimeFormat('ru', { month: 'long' }).format();
// октября

To Reproduce

Codesandbox URL

https://codesandbox.io/p/sandbox/intl-datetimeformat-z4hghd?file=/src/index.js

Reproducible Steps/Repo

import "@formatjs/intl-datetimeformat/polyfill-force";
import "@formatjs/intl-datetimeformat/locale-data/ru";

const relativeMonth = new Intl.DateTimeFormat("ru", {
  day: "numeric",
  month: "long",
}).format();
const standAloneMonth = new Intl.DateTimeFormat("ru", {
  month: "long",
}).format();

console.log(relativeMonth);
console.log(standAloneMonth);

Expected behavior

Right long form for stand-alone month should be used: октябрь (see clrd)

Additional context

Everything works fine at least in Chrome & Firefox without polyfill.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[anatolyeltsov]

Hopefully it won't be closed without an answer at all.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.