Block-comment keybinding not working properly (on CH keyboard?)

Bug Report
1

On Swiss keyboards shift+cmd+7 is the default comment / block-comment toggle.
In an HTML file with a <script> node it works only on non-JavaScript code like CSS but it won’t toggle in the JavaScript portion.
Even when invoked from the dropdown menu it doesn’t work.
It works on ‘pure’ JS files.

keybindings.json entry:

{
		"key": "shift+cmd+7",
		"command": "editor.action.blockComment",
		"when": "editorTextFocus && !editorReadonly"
},