### Tested versions

Caused by [0d6300d269b818e6c3d3ea9cbc592480103aa6d0] Fix folder color not showing up in file dialogs
https://github.com/godotengine/godot/pull/84837
(git bisection)

### System information

Godot v4.3.dev (6faa5c6dc) - Fedora Linux 39 (Workstation Edition) - Wayland - Vulkan (Forward+) - dedicated AMD Radeon RX Vega (RADV VEGA10) () - AMD Ryzen 7 5800X 8-Core Processor (16 Threads)

### Issue description

When opening the export path, it results in a black popup.

![image](https://github.com/godotengine/godot/assets/270928/d67dee6a-f1e1-4bf3-8a3f-419554269f4a)


### Steps to reproduce

1. Open export settings
2. Add an export target
3. Try to select an export path

### Minimal reproduction project (MRP)

n/a
int current = p_item;
	if (current < 0 || current >= item_list->get_item_count()) {
		return;
	}
	Dictionary d = item_list->get_item_metadata(current);
	if (d["dir"]) {
		dir_access->change_dir(d["name"]);
		callable_mp(this, &EditorFileDialog::update_file_list).call_deferred();
		callable_mp(this, &EditorFileDialog::update_dir).call_deferred();
		_push_history();
	} else {
		_action_pressed();
	}
}
void EditorFileDialog::_item_list_item_rmb_clicked(int p_item, const Vector2 &p_pos, MouseButton p_mouse_button_index) {
	if (p_mouse_button_index != MouseButton::RIGHT) {
		return;
	}
	
	item_menu->clear();
	item_menu->reset_size();
	
	bool single_item_selected = item_list->get_selected_items().size() == 1;
	
	bool allow_delete = true;
	for (int i = 0; i < item_list->get_item_count(); i++) {
		if (!item_list->is_selected(i)) {