Bug: Coffeescript wrong comments insert

[n-smits]

In <script lang='coffee'> add comment hotkey erroneously adds html comments (<!-- -->) instead of appropriate coffee ones (#).

Reproduce:

• npm init coffee-app, pick type: Coffeescript-Svelte
• cd coffee-project && npm install && npm run dev
• open App.svelte and try Toggle line comment hotkey (default Ctrl + /) in script tag (title = ...)

Checked:

• this is the installed VS Code extension I have, repo links to https://github.com/sveltejs/language-tools
• VS Code Settings, search Files: Associations doesn't list .svelte at all