### Godot version

4.1.dev (1becfea37c)

### System information

MacOS 13.3 M1 Pro

### Issue description

When you use batch rename you can ask him to rename to invalid node names. it won't raise any warning nor error it will just rename to a valid node names without informing you of the change. For comparison with simple renames this is shown as warning
<img width="452" alt="Capture d’écran 2023-05-02 à 21 49 47" src="https://user-images.githubusercontent.com/66184050/235771076-a2f09307-6c8d-4687-8d31-58234e8e2bf1.png">


### Steps to reproduce

1. create a root Node and two Node children
2. select the two children
3. Batch rename the `e` to `%`
4. See that childrens have been renamed to `Nod_` and `Nod_2` without warning 

### Minimal reproduction project

N/A
but_insert_root = memnew(Button);
	but_insert_root->set_text("ROOT");
	but_insert_root->set_tooltip_text(String("${ROOT}\n") + TTR("Root node name."));
	but_insert_root->set_focus_mode(Control::FOCUS_NONE);
	but_insert_root->connect("pressed", callable_mp(this, &RenameDialog::_insert_text).bind("${ROOT}"));
	but_insert_root->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	grd_substitute->add_child(but_insert_root);
	
	but_insert_count = memnew(Button);
	but_insert_count->set_text("COUNTER");
	but_insert_count->set_tooltip_text(String("${COUNTER}\n") + TTR("Sequential integer counter.\nCompare counter options."));
	but_insert_count->set_focus_mode(Control::FOCUS_NONE);
	but_insert_count->connect("pressed", callable_mp(this, &RenameDialog::_insert_text).bind("${COUNTER}"));
	but_insert_count->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	grd_substitute->add_child(but_insert_count);
	chk_per_level_counter = memnew(CheckBox);
	chk_per_level_counter->set_text(TTR("Per-level Counter"));
	chk_per_level_counter->set_tooltip_text(TTR("If set, the counter restarts for each group of child nodes."));
	vbc_substitute->add_child(chk_per_level_counter);
	HBoxContainer *hbc_count_options = memnew(HBoxContainer);
	vbc_substitute->add_child(hbc_count_options);
	Label *lbl_count_start = memnew(Label);
	lbl_count_start->set_text(TTR("Start"));
	lbl_count_start->set_tooltip_text(TTR("Initial value for the counter."));
	hbc_count_options->add_child(lbl_count_start);
	spn_count_start = memnew(SpinBox);
	spn_count_start->set_tooltip_text(TTR("Initial value for the counter."));
	spn_count_start->set_step(1);
	spn_count_start->set_min(0);
	hbc_count_options->add_child(spn_count_start);