### 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)

float percent = (float)(p_mouse_y - code_completion_scroll_rect.position.y) / code_completion_scroll_rect.size.height;
	percent = CLAMP(percent, 0.0f, 1.0f);
	code_completion_current_selected = (int)(percent * (code_completion_options.size() - 1));
	code_completion_force_item_center = -1;
}
void CodeEdit::_filter_code_completion_candidates_impl() {
	int line_height = get_line_height();
	if (GDVIRTUAL_IS_OVERRIDDEN(_filter_code_completion_candidates)) {
		code_completion_options.clear();
		code_completion_base = "";
		
		TypedArray<Dictionary> completion_options_sources;
		completion_options_sources.resize(code_completion_option_sources.size());
		int i = 0;
		for (const ScriptLanguage::CodeCompletionOption &E : code_completion_option_sources) {
			Dictionary option;
			option["kind"] = E.kind;
			option["display_text"] = E.display;
			option["insert_text"] = E.insert_text;
			option["font_color"] = E.font_color;
			option["icon"] = E.icon;
			option["default_value"] = E.default_value;
			completion_options_sources[i] = option;
			i++;