### 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
TreeItem *s = tree->get_selected();
	ERR_FAIL_COND(!s);
	NodePath np = s->get_metadata(0);
	Node *n = get_node(np);
	if (n == selected) {
		return;
	}
	selected = get_node(np);
	blocked++;
	emit_signal(SNAME("node_selected"));
	blocked--;
}
void SceneTreeEditor::_deselect_items() {
	// Clear currently selected items in scene tree dock.
	if (editor_selection) {
		editor_selection->clear();
		emit_signal(SNAME("node_changed"));
	}
}
void SceneTreeEditor::_cell_multi_selected(Object *p_object, int p_cell, bool p_selected) {