vscode's `javascript.preferences.importModuleSpecifierEnding` preference has no effect

[jespertheend]

Bug Report

🔎 Search Terms

javascript.preferences.importModuleSpecifierEnding

🕗 Version & Regression Information

• This changed between versions 4.9.5 and 5.0.2

⏯ Playground Link

n/a

💻 Steps to reproduce

1. Set vscode's javascript.preferences.importModuleSpecifierEnding preference to "js"
2. Set typescript.preferences.importModuleSpecifierEnding to "auto"
3. Type the name of a function inside of a JavaScript file and press enter to automatically import it

🙁 Actual behavior

The import path is missing .js at the end.

🙂 Expected behavior

The import path includes .js at the end. It seems as though vscode thinks all .js files are actually .ts files in regard to this preference. Because when I set typescript.preferences.importModuleSpecifierEnding to "js" my imports behave as expected.
When I switch the TypeScript version to the one bundled with vscode, the issue is resolved.

[jespertheend]

Oops, seems like this is a duplicate of #52167