src/vs/workbench/contrib/customEditor/browser/customEditorInputFactory.ts/CustomEditorInputSerializer/fromJson
class CustomEditorInputSerializer:	protected override fromJson(data: SerializedCustomEditor): DeserializedCustomEditor {
		return {
			...super.fromJson(data),
			editorResource: URI.from(data.editorResource),
			dirty: data.dirty,
		};
	}