### 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
switch (p_what) {
		case NOTIFICATION_READY: {
			add_theme_style_override("panel", get_theme_stylebox(SNAME("bg"), SNAME("AssetLib")));
			error_label->move_to_front();
		} break;
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			error_tr->set_texture(get_editor_theme_icon(SNAME("Error")));
			filter->set_right_icon(get_editor_theme_icon(SNAME("Search")));
			library_scroll_bg->add_theme_style_override("panel", get_theme_stylebox(SNAME("panel"), SNAME("Tree")));
			downloads_scroll->add_theme_style_override("panel", get_theme_stylebox(SNAME("panel"), SNAME("Tree")));
			error_label->add_theme_color_override("color", get_theme_color(SNAME("error_color"), EditorStringName(Editor)));
		} break;
		case NOTIFICATION_VISIBILITY_CHANGED: {
			if (is_visible()) {
#ifndef ANDROID_ENABLED