### 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
String extension = file.get_extension().to_lower();
			if (extension_guess.has(extension)) {
				ti->set_icon(0, extension_guess[extension]);
			} else {
				ti->set_icon(0, generic_extension);
			}
			ti->set_text(0, file);
			String res_path = "res://" + path;
			if (FileAccess::exists(res_path)) {
				num_file_conflicts += 1;
				ti->set_custom_color(0, tree->get_theme_color(SNAME("error_color"), EditorStringName(Editor)));
				ti->set_tooltip_text(0, vformat(TTR("%s (already exists)"), res_path));
				ti->set_checked(0, false);
				ti->propagate_check(0);
			} else {
				ti->set_tooltip_text(0, res_path);
			}
			ti->set_metadata(0, res_path);
		}
		status_map[E] = ti;
	}
	if (num_file_conflicts >= 1) {
		asset_contents->set_text(vformat(TTR("Contents of asset \"%s\" - %d file(s) conflict with your project:"), asset_name, num_file_conflicts));
	} else {
		asset_contents->set_text(vformat(TTR("Contents of asset \"%s\" - No files conflict with your project:"), asset_name));
	}
	popup_centered_ratio(0.5);
	updating = false;
}
void EditorAssetInstaller::ok_pressed() {