### Godot version

v4.1.1.stable.official [bd6af8e0e]

### System information

Godot v4.1.1.stable - Windows 10.0.22621 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1080 Ti (NVIDIA; 31.0.15.3667) - AMD Ryzen 9 7900X 12-Core Processor (24 Threads)

### Issue description

This [addon](https://godotengine.org/asset-library/asset/1989) is shown as empty when downloaded via the editor. If downloading from the website everything works fine and there is content in the zip file.
![image](https://github.com/godotengine/godot/assets/10883690/259f114a-6ac0-4dd2-b71f-75c35d91ba85)

The asset uses `Custom` as repository host, linking with URL to `https://github.com/kenyoni-software/godot-addons/releases/download/hide_private_properties-1.0.1/hide_private_properties-1_0_1.zip`

### Steps to reproduce

Go to the Asset Lib and download [Hide Private Properties](https://godotengine.org/asset-library/asset/1989).

### Minimal reproduction project

N/A
category->connect("pressed", callable_mp(this, &EditorAssetLibraryItem::_category_clicked));
	vb->add_child(category);
	author = memnew(LinkButton);
	author->set_underline_mode(LinkButton::UNDERLINE_MODE_ON_HOVER);
	author->connect("pressed", callable_mp(this, &EditorAssetLibraryItem::_author_clicked));
	vb->add_child(author);
	price = memnew(Label);
	vb->add_child(price);
	set_custom_minimum_size(Size2(250, 100) * EDSCALE);
	set_h_size_flags(Control::SIZE_EXPAND_FILL);
}
void EditorAssetLibraryItemDescription::set_image(int p_type, int p_index, const Ref<Texture2D> &p_image) {
	switch (p_type) {
		case EditorAssetLibrary::IMAGE_QUEUE_ICON: {
			item->call("set_image", p_type, p_index, p_image);
			icon = p_image;
		} break;
		case EditorAssetLibrary::IMAGE_QUEUE_THUMBNAIL: {
			for (int i = 0; i < preview_images.size(); i++) {
				if (preview_images[i].id == p_index) {
					if (preview_images[i].is_video) {
						Ref<Image> overlay = previews->get_editor_theme_icon(SNAME("PlayOverlay"))->get_image();
						Ref<Image> thumbnail = p_image->get_image();
						thumbnail = thumbnail->duplicate();
						Point2i overlay_pos = Point2i((thumbnail->get_width() - overlay->get_width()) / 2, (thumbnail->get_height() - overlay->get_height()) / 2);
						
						thumbnail->convert(Image::FORMAT_RGBA8);
						thumbnail->blend_rect(overlay, overlay->get_used_rect(), overlay_pos);
						preview_images[i].button->set_icon(ImageTexture::create_from_image(thumbnail));