### 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
asset_id = p_asset_id;
	title = p_title;
	download_url = p_download_url;
	sha256 = p_sha256_hash;
	item->configure(p_title, p_asset_id, p_category, p_category_id, p_author, p_author_id, p_cost);
	description->clear();
	description->add_text(TTR("Version:") + " " + p_version_string + "\n");
	description->add_text(TTR("Contents:") + " ");
	description->push_meta(p_browse_url);
	description->add_text(TTR("View Files"));
	description->pop();
	description->add_text("\n" + TTR("Description:") + "\n\n");
	description->append_text(p_description);
	description->set_selection_enabled(true);
	description->set_context_menu_enabled(true);
	set_title(p_title);
}
void EditorAssetLibraryItemDescription::add_preview(int p_id, bool p_video, const String &p_url) {