### Godot version

4.1 dev3

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description

Trying to move a folder results in moving error and it's not moved.
Regression from #75330

A fix already exists, but I'm opening an issue so it's not lost (the PR isn't ready and not very active).

### Steps to reproduce

1. Add 2 folders in filesystem
2. Move one folder into another one

### Minimal reproduction project

N/A
Ref<Texture2D> file_icon;
	if (!p_is_valid) {
		file_icon = get_theme_icon(SNAME("ImportFail"), SNAME("EditorIcons"));
	} else {
		file_icon = (has_theme_icon(p_file_type, SNAME("EditorIcons"))) ? get_theme_icon(p_file_type, SNAME("EditorIcons")) : get_theme_icon(SNAME("File"), SNAME("EditorIcons"));
	}
	return file_icon;
}
bool FileSystemDock::_create_tree(TreeItem *p_parent, EditorFileSystemDirectory *p_dir, Vector<String> &uncollapsed_paths, bool p_select_in_favorites, bool p_unfold_path) {
	bool parent_should_expand = false;
	
	TreeItem *subdirectory_item = tree->create_item(p_parent);
	String dname = p_dir->get_name();
	if (dname.is_empty()) {
		dname = "res://";
	}
	subdirectory_item->set_text(0, dname);
	subdirectory_item->set_structured_text_bidi_override(0, TextServer::STRUCTURED_TEXT_FILE);
	subdirectory_item->set_icon(0, get_theme_icon(SNAME("Folder"), SNAME("EditorIcons")));
	subdirectory_item->set_icon_modulate(0, get_theme_color(SNAME("folder_icon_color"), SNAME("FileDialog")));
	subdirectory_item->set_selectable(0, true);