### 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
if (d["dir"]) {
					path = path.path_join(d["name"]);
					break;
				}
			}
		}
		_save_to_recent();
		hide();
		emit_signal(SNAME("dir_selected"), path);
	}
	if (mode == FILE_MODE_SAVE_FILE) {
		bool valid = false;
		if (filter->get_selected() == filter->get_item_count() - 1) {
			valid = true; 
		} else if (filters.size() > 1 && filter->get_selected() == 0) {
			
			for (int i = 0; i < filters.size(); i++) {
				String flt = filters[i].get_slice(";", 0);
				for (int j = 0; j < flt.get_slice_count(","); j++) {
					String str = flt.get_slice(",", j).strip_edges();
					if (f.match(str)) {
						valid = true;
						break;
					}
				}
				if (valid) {
					break;
				}
			}
		} else {