### 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)

}
					Point2i pos = get_line_column_at_pos(mpos, false);
					int line = pos.y;
					int col = pos.x;
					if (line != -1) {
						emit_signal(SNAME("symbol_lookup"), symbol_lookup_word, line, col);
					}
					return;
				}
			}
		}
	}
	Ref<InputEventMouseMotion> mm = p_gui_input;
	if (mm.is_valid()) {
		Vector2i mpos = mm->get_position();
		if (is_layout_rtl()) {
			mpos.x = get_size().x - mpos.x;
		}
		if (symbol_lookup_on_click_enabled) {
			if (mm->is_command_or_control_pressed() && mm->get_button_mask().is_empty()) {
				symbol_lookup_pos = get_line_column_at_pos(mpos);
				symbol_lookup_new_word = get_word_at_pos(mpos);
				if (symbol_lookup_new_word != symbol_lookup_word) {
					emit_signal(SNAME("symbol_validate"), symbol_lookup_new_word);
				}
			} else if (!mm->is_command_or_control_pressed() || (!mm->get_button_mask().is_empty() && symbol_lookup_pos != get_line_column_at_pos(mpos))) {
				set_symbol_lookup_word_as_valid(false);
			}
		}
		bool scroll_hovered = code_completion_scroll_rect.has_point(mpos);