Per project overrides not copying base settings?

[cschreib-ibex]

While trying to come up with an alternative solution to #78, I noticed an odd thing. This is not working as I expect, but perhaps this is working as intended...

For the use case in #78, I had to override "exclude_syntaxes" for a particular formatter (Prettier). I found that if I just set my settings as:

        "Formatter":
        {
            "formatters": {
                "prettier": {
                    "enable": true,
                    "format_on_save": true,
                    "exclude_syntaxes": {
                        "html": ["jinja"],
                    },
                },
            }
        }

The formatter would not run (and running it manually triggered as Syntax out of the scope error). After a bit of trial and error, I found that I had to override both "syntaxes" and "exclude_syntaxes". I didn't need to change the value of "syntaxes", just copying the default value worked.

I expected the override logic to work like this:

• Load the default package settings for "prettier".
• Merge any overrides from my global User settings file (across projects).
• Merge any overrides from my project settings file (project-specific).
• The result are the settings to use.

Is this not what is supposed to happen?