### Godot version

4.1.dev (a7276f1ce0)

### System information

MacOS 13.3 M1 Pro

### Issue description

when doing a Batch rename with two nodes being present in a `NodePath`. Batch Rename will try to update the `NodePath` but will fail which will results in this error
<img width="515" alt="Capture d’écran 2023-04-14 à 23 59 02" src="https://user-images.githubusercontent.com/66184050/232161972-57b49435-7707-4e41-bfed-613b073477b7.png">


### Steps to reproduce

1. Open the minimal reproduction project or follow the instruction below:
    1. first reproduce the following tree (this is because of #76069) <img width="235" alt="Capture d’écran 2023-04-14 à 23 09 47" src="https://user-images.githubusercontent.com/66184050/232155382-da3f9e22-26fb-4e10-bdcb-07cb60c25ea1.png">
    2. add a script to the root and export a `NodePath` variable
    3. Set the exported variable to the `GrandChild` node
4. select all node except the root.
5. Batch rename `C` to `T` for example
6. Inspect the root node. You should have a broken `NodePath` and an error.

### Minimal reproduction project

[test1.zip](https://github.com/godotengine/godot/files/11237175/test1.zip)
opt_style = memnew(OptionButton);
	opt_style->add_item(TTR("Keep"));
	opt_style->add_item(TTR("PascalCase to snake_case"));
	opt_style->add_item(TTR("snake_case to PascalCase"));
	hbc_style->add_child(opt_style);
	
	HBoxContainer *hbc_case = memnew(HBoxContainer);
	vbc_process->add_child(hbc_case);
	Label *lbl_case = memnew(Label);
	lbl_case->set_text(TTR("Case"));
	hbc_case->add_child(lbl_case);
	opt_case = memnew(OptionButton);
	opt_case->add_item(TTR("Keep"));
	opt_case->add_item(TTR("To Lowercase"));
	opt_case->add_item(TTR("To Uppercase"));
	hbc_case->add_child(opt_case);
	
	HSeparator *sep_preview = memnew(HSeparator);
	sep_preview->set_custom_minimum_size(Size2(10, 20));
	vbc->add_child(sep_preview);
	lbl_preview_title = memnew(Label);
	vbc->add_child(lbl_preview_title);
	lbl_preview = memnew(Label);
	lbl_preview->set_autowrap_mode(TextServer::AUTOWRAP_WORD_SMART);
	vbc->add_child(lbl_preview);
	
	set_min_size(Size2(383, 0));
	set_ok_button_text(TTR("Rename"));
	Button *but_reset = add_button(TTR("Reset"));
	eh.errfunc = _error_handler;