### 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
editor_selection->add_node(n);
		set_selected(n);
		TabContainer *tab_container = Object::cast_to<TabContainer>(NodeDock::get_singleton()->get_parent());
		NodeDock::get_singleton()->get_parent()->call("set_current_tab", tab_container->get_tab_idx_from_control(NodeDock::get_singleton()));
		NodeDock::get_singleton()->show_connections();
	} else if (p_id == BUTTON_GROUPS) {
		editor_selection->clear();
		editor_selection->add_node(n);
		set_selected(n);
		TabContainer *tab_container = Object::cast_to<TabContainer>(NodeDock::get_singleton()->get_parent());
		NodeDock::get_singleton()->get_parent()->call("set_current_tab", tab_container->get_tab_idx_from_control(NodeDock::get_singleton()));
		NodeDock::get_singleton()->show_groups();
	} else if (p_id == BUTTON_UNIQUE) {
		undo_redo->create_action(TTR("Disable Scene Unique Name"));
		undo_redo->add_do_method(n, "set_unique_name_in_owner", false);
		undo_redo->add_undo_method(n, "set_unique_name_in_owner", true);
		undo_redo->add_do_method(this, "_update_tree");
		undo_redo->add_undo_method(this, "_update_tree");
		undo_redo->commit_action();
	}
}
void SceneTreeEditor::_toggle_visible(Node *p_node) {
	if (p_node->has_method("is_visible") && p_node->has_method("set_visible")) {
		bool v = bool(p_node->call("is_visible"));
		Ref<EditorUndoRedoManager> &undo_redo = EditorNode::get_undo_redo();
		undo_redo->add_do_method(p_node, "set_visible", !v);
		undo_redo->add_undo_method(p_node, "set_visible", v);
	}
}
void SceneTreeEditor::_add_nodes(Node *p_node, TreeItem *p_parent) {