### 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
target = String();
	target_favorites = false;
	
	if (p_from == files) {
		int pos = files->get_item_at_position(p_point, true);
		if (pos == -1) {
			return;
		}
		String ltarget = files->get_item_metadata(pos);
		target = ltarget.ends_with("/") ? ltarget : current_path.get_base_dir();
		return;
	}
	
	if (p_from == tree) {
		TreeItem *ti = tree->get_item_at_position(p_point);
		int section = tree->get_drop_section_at_position(p_point);
		if (ti) {
			
			if (ti == tree->get_root()->get_first_child() && section >= 0) {
				target_favorites = true;
				return;
			} else if (ti->get_parent() == tree->get_root()->get_first_child()) {
				target_favorites = true;
				return;