### Godot version

Godot 4 beta 10

### System information

Windows 10, mobile mode

### Issue description

You can give a node a blank name by deleting its name and press enter
![image](https://user-images.githubusercontent.com/94725241/210934227-a3b42f81-f152-470e-be6f-645321b9060e.png)


### Steps to reproduce

1. Create any node
2. Double click it, you should now be able to rename it
3. Backspace, than enter
4. You got a node with no name

### Minimal reproduction project

N/A
hash = hash_djb2_one_64(p_node->get_instance_id(), hash);
	if (p_node->get_parent()) {
		hash = hash_djb2_one_64(p_node->get_parent()->get_instance_id(), hash); //so a reparent still produces a different hash
	}
	for (int i = 0; i < p_node->get_child_count(); i++) {
		_compute_hash(p_node->get_child(i), hash);
	}
}
void SceneTreeEditor::_test_update_tree() {
	pending_test_update = false;
	if (!is_inside_tree()) {
		return;
	}
	if (tree_dirty) {
		return; // don't even bother
	}
	uint64_t hash = hash_djb2_one_64(0);
	if (get_scene_node()) {
		_compute_hash(get_scene_node(), hash);
	}
	//test hash
	if (hash == last_hash) {
		return; // did not change
	}
	MessageQueue::get_singleton()->push_call(this, "_update_tree");
	tree_dirty = true;
}
void SceneTreeEditor::_tree_process_mode_changed() {