Localize property not working?

[wdtamagi]

Describe the bug

I notice even using the property localize: false into the fields I don't want to be send to translation is not working. Is this still working?

For reference: https://github.com/sanity-io/sanity-translations-tab/blob/main/docs/00-faq.md#how-can-i-prevent-certain-fields-from-being-sent-to-translation

I'm using the integration with Smartling and the structure looks strange at Smartling platform:

My schema:

export const moduleVideoCarousel = {
	fields: [
		{
			name: "heading",
			title: "Heading",
			type: "string",
		},
		{
			name: "description",
			title: "Description",
			type: "simpleBlock",
		},
		{
			name: "slides",
			of: [
				{
					fields: [
						{
							name: "title",
							title: "Title",
							type: "string",
						},
						{
							name: "description",
							title: "Description",
							type: "typographyBlock",
						},
						{
							localize: false,
							name: "videoUrl",
							title: "Video URL",
							type: "string",
						},
					],
					name: "slide",
					preview: {
						prepare({ title }) {
							return {
								title,
							};
						},
						select: {
							title: "title",
						},
					},
					title: "Slide",
					type: "object",
				},
			],
			title: "Slides",
			type: "array",
		},
		{
			description: "Choose your background",
			localize: false,
			name: "background",
			title: "Background",
			to: [{ type: "background" }],
			type: "reference",
		},
		{
			initialValue: "spacious",
			localize: false,
			name: "margin",
			options: {
				list: [
					{ title: "Spacious", value: "spacious" },
					{ title: "Moderate", value: "moderate" },
					{ title: "Tight", value: "tight" },
				],
			},
			title: "Margin",
			type: "string",
		},
	],
	name: "moduleVideoCarousel",
	preview: {
		prepare({ title }) {
			return {
				title,
			};
		},
		select: {
			title: "heading",
		},
	},
	title: "Video Carousel",
	type: "object",
};

I'm using the localize: false at the margin field.

I'm doing something wrong? I was expecting to the margin field not be sent to Smartling and seems like the fields are mixed into html tags:

<span class="heading">Real videos by real people</span><span class="margin">spacious</span>

Where "heading" is one field and "margin" is another field.