### 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
Preview new_preview;
	new_preview.id = p_id;
	new_preview.video_link = p_url;
	new_preview.is_video = p_video;
	new_preview.button = memnew(Button);
	new_preview.button->set_icon(previews->get_editor_theme_icon(SNAME("ThumbnailWait")));
	new_preview.button->set_toggle_mode(true);
	new_preview.button->connect("pressed", callable_mp(this, &EditorAssetLibraryItemDescription::_preview_click).bind(p_id));
	preview_hb->add_child(new_preview.button);
	if (!p_video) {
		new_preview.image = previews->get_editor_theme_icon(SNAME("ThumbnailWait"));
	}
	preview_images.push_back(new_preview);
	if (preview_images.size() == 1 && !p_video) {
		_preview_click(p_id);
	}
}
EditorAssetLibraryItemDescription::EditorAssetLibraryItemDescription() {