### 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
HBoxContainer *hbox = memnew(HBoxContainer);
	add_child(hbox);
	VBoxContainer *desc_vbox = memnew(VBoxContainer);
	hbox->add_child(desc_vbox);
	hbox->add_theme_constant_override("separation", 15 * EDSCALE);
	item = memnew(EditorAssetLibraryItem);
	desc_vbox->add_child(item);
	desc_vbox->set_custom_minimum_size(Size2(440 * EDSCALE, 0));
	description = memnew(RichTextLabel);
	desc_vbox->add_child(description);
	description->set_v_size_flags(Control::SIZE_EXPAND_FILL);
	description->connect("meta_clicked", callable_mp(this, &EditorAssetLibraryItemDescription::_link_click));
	description->add_theme_constant_override("line_separation", Math::round(5 * EDSCALE));
	VBoxContainer *previews_vbox = memnew(VBoxContainer);
	hbox->add_child(previews_vbox);
	previews_vbox->add_theme_constant_override("separation", 15 * EDSCALE);
	previews_vbox->set_v_size_flags(Control::SIZE_EXPAND_FILL);
	previews_vbox->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	preview = memnew(TextureRect);
	previews_vbox->add_child(preview);
	preview->set_expand_mode(TextureRect::EXPAND_IGNORE_SIZE);
	preview->set_stretch_mode(TextureRect::STRETCH_KEEP_ASPECT_CENTERED);
	preview->set_custom_minimum_size(Size2(640 * EDSCALE, 345 * EDSCALE));
	preview->set_v_size_flags(Control::SIZE_EXPAND_FILL);
	preview->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	previews_bg = memnew(PanelContainer);
	previews_vbox->add_child(previews_bg);