### 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)

add_child(vbc);
	
	GridContainer *grd_main = memnew(GridContainer);
	grd_main->set_columns(2);
	grd_main->set_v_size_flags(Control::SIZE_EXPAND_FILL);
	vbc->add_child(grd_main);
	
	Label *lbl_search = memnew(Label);
	lbl_search->set_text(TTR("Search:"));
	lne_search = memnew(LineEdit);
	lne_search->set_name("lne_search");
	lne_search->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	Label *lbl_replace = memnew(Label);
	lbl_replace->set_text(TTR("Replace:"));
	lne_replace = memnew(LineEdit);
	lne_replace->set_name("lne_replace");
	lne_replace->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	grd_main->add_child(lbl_search);
	grd_main->add_child(lbl_replace);
	grd_main->add_child(lne_search);
	grd_main->add_child(lne_replace);
	
	Label *lbl_prefix = memnew(Label);
	lbl_prefix->set_text(TTR("Prefix:"));
	lne_prefix = memnew(LineEdit);
	lne_prefix->set_name("lne_prefix");
	lne_prefix->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	Label *lbl_suffix = memnew(Label);
	lbl_suffix->set_text(TTR("Suffix:"));
	lne_suffix = memnew(LineEdit);