### Godot version

4.1.dev (1becfea37c)

### System information

MacOS 13.3 M1 Pro

### Issue description

When renaming with Batch Rename using invalid character `NodePath` will be updated with the invalid new name.

### Steps to reproduce

1.  open MRP
2. batch rename all nodes except the root from `e` to `%`
3. look at the `NodePath` on the root

### Minimal reproduction project

[test1.zip](https://github.com/godotengine/godot/files/11377324/test1.zip)

selected = nullptr;
	can_rename = p_can_rename;
	can_open_instance = p_can_open_instance;
	editor_selection = nullptr;
	if (p_label) {
		Label *label = memnew(Label);
		label->set_theme_type_variation("HeaderSmall");
		label->set_position(Point2(10, 0));
		label->set_text(TTR("Scene Tree (Nodes):"));
		add_child(label);
	}
	tree = memnew(Tree);
	tree->set_anchor(SIDE_RIGHT, ANCHOR_END);
	tree->set_anchor(SIDE_BOTTOM, ANCHOR_END);
	tree->set_begin(Point2(0, p_label ? 18 : 0));
	tree->set_end(Point2(0, 0));
	tree->set_allow_reselect(true);
	tree->add_theme_constant_override("button_margin", 0);
	add_child(tree);
	SET_DRAG_FORWARDING_GCD(tree, SceneTreeEditor);