### 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
p_parent->set_visible(keep_for_children || keep);
	if (keep_for_children) {
		if (keep) {
			p_parent->clear_custom_color(0);
			p_parent->set_selectable(0, true);
		} else {
			p_parent->set_custom_color(0, get_theme_color(SNAME("disabled_font_color"), SNAME("Editor")));
			p_parent->set_selectable(0, false);
			p_parent->deselect(0);
		}
	}
	if (editor_selection) {
		Node *n = get_node(p_parent->get_metadata(0));
		if (keep) {
			if (p_scroll_to_selected && n && editor_selection->is_selected(n)) {
				tree->scroll_to_item(p_parent);
			}
		} else {
			if (n && p_parent->is_selected(0)) {
				editor_selection->remove_node(n);
				p_parent->deselect(0);
			}
		}
	}
	return keep || keep_for_children;
}
bool SceneTreeEditor::_item_matches_all_terms(TreeItem *p_item, PackedStringArray p_terms) {
	if (p_terms.is_empty()) {
		return true;
	}