### Godot version

v4.0.beta.custom_build [0abd60b95]

### System information

Windows 10, Vulkan

### Issue description

Autocomplete doesn't work when trying to access a scene node that isn't a direct child of the scene root script, using $NodePath (Shorthand for get_node("NodePath") as per docs).

Example:
![image](https://user-images.githubusercontent.com/115422160/212197922-10e73c9f-de10-475e-ac6e-4163fc5b8013.png)

It worked in Godot 3.5:
![3.5](https://user-images.githubusercontent.com/115422160/212197992-61b67a42-86c6-4650-bab4-c7dfa5a67975.PNG)

I should mention that it works if you start by typing the name of a direct child:
![image](https://user-images.githubusercontent.com/115422160/212198641-6d8e6fca-a2d2-47a7-b627-2df95268daf5.png)

But when you have many nodes in the scene and longer names it's a pain to access the last children like that.


### Steps to reproduce

See above or MRP.

### Minimal reproduction project

[autocomplete bug.zip](https://github.com/godotengine/godot/files/10406695/autocomplete.bug.zip)

if (code_completion_current_selected < code_completion_options.size() - 1) {
						code_completion_current_selected++;
						code_completion_force_item_center = -1;
						queue_redraw();
					}
				} break;
				case MouseButton::LEFT: {
					if (code_completion_force_item_center == -1) {
						code_completion_force_item_center = code_completion_current_selected;
					}
					code_completion_current_selected = CLAMP(code_completion_line_ofs + (mb->get_position().y - code_completion_rect.position.y) / get_line_height(), 0, code_completion_options.size() - 1);
					if (mb->is_double_click()) {
						confirm_code_completion();
					}
					queue_redraw();
				} break;
				default:
					break;
			}
			return;
		} else if (code_completion_active && code_completion_scroll_rect.has_point(mb->get_position())) {
			if (mb->get_button_index() != MouseButton::LEFT) {
				return;
			}
			if (mb->is_pressed()) {
				is_code_completion_scroll_pressed = true;
				_update_scroll_selected_line(mb->get_position().y);
				queue_redraw();
			}
			return;