### 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
dir_access->change_dir(p_dir);
	invalidate();
	update_dir();
	_push_history();
}
void EditorFileDialog::_file_submitted(const String &p_file) {
	_action_pressed();
}
void EditorFileDialog::_save_confirm_pressed() {
	String f = dir_access->get_current_dir().path_join(file->get_text());
	_save_to_recent();
	hide();
	emit_signal(SNAME("file_selected"), f);
}
void EditorFileDialog::_post_popup() {