### 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)

set_gutter_draw(gutter_idx, false);
	set_gutter_overwritable(gutter_idx, true);
	set_gutter_type(gutter_idx, GUTTER_TYPE_CUSTOM);
	set_gutter_custom_draw(gutter_idx, callable_mp(this, &CodeEdit::_main_gutter_draw_callback));
	gutter_idx++;
	
	add_gutter();
	set_gutter_name(gutter_idx, "line_numbers");
	set_gutter_draw(gutter_idx, false);
	set_gutter_type(gutter_idx, GUTTER_TYPE_CUSTOM);
	set_gutter_custom_draw(gutter_idx, callable_mp(this, &CodeEdit::_line_number_draw_callback));
	gutter_idx++;
	
	add_gutter();
	set_gutter_name(gutter_idx, "fold_gutter");
	set_gutter_draw(gutter_idx, false);
	set_gutter_type(gutter_idx, GUTTER_TYPE_CUSTOM);
	set_gutter_custom_draw(gutter_idx, callable_mp(this, &CodeEdit::_fold_gutter_draw_callback));
	gutter_idx++;
	connect("lines_edited_from", callable_mp(this, &CodeEdit::_lines_edited_from));
	connect("text_set", callable_mp(this, &CodeEdit::_text_set));
	connect("text_changed", callable_mp(this, &CodeEdit::_text_changed));
	connect("gutter_clicked", callable_mp(this, &CodeEdit::_gutter_clicked));
	connect("gutter_added", callable_mp(this, &CodeEdit::_update_gutter_indexes));
	connect("gutter_removed", callable_mp(this, &CodeEdit::_update_gutter_indexes));
	_update_gutter_indexes();
}
CodeEdit::~CodeEdit() {
}