vscode ignores editor.formatOnSave = false set for language

[soredake]

Does this issue occur when all extensions are disabled?: Yes/No

• VS Code Version: 1.75.0
• OS Version: Windows 11 Pro

Steps to Reproduce:

1. Add this to your user settings:

"editor.formatOnSave": true,
  "[properties]": {
    "editor.defaultFormatter": "foxundermoon.shell-format",
    "editor.formatOnSave": false
  },

2. Create file.conf, put this code in this file:

profile-cond=p["estimated-vf-fps"]<50

4. Press ctrl+s
5. It will format it to this despite format on save is turned off:
   

[jrieken]

This is a problem with the extension. It doesn't register itself as formatter but just hooks into saving (and happens to run a formatting operation as part of that). We all the APIs to do it right, I have blogged about this (https://code.visualstudio.com/blogs/2016/11/15/formatters-best-practices) but the knowledge hasn't spread yet