src/vs/workbench/contrib/preferences/browser/preferencesEditor.ts/PreferencesEditor/setInput
class PreferencesEditor:	override setInput(input: PreferencesEditorInput, options: ISettingsEditorOptions | undefined, context: IEditorOpenContext, token: CancellationToken): Promise<void> {
		this.defaultSettingsEditorContextKey.set(true);
		this.defaultSettingsJSONEditorContextKey.set(true);
		if (options && options.query) {
			this.focusSearch(options.query);
		}

		return super.setInput(input, options, context, token).then(() => this.updateInput(input, options, context, token));
	}