### 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)

return (code_completion_active) ? code_completion_current_selected : -1;
}
void CodeEdit::set_code_completion_selected_index(int p_index) {
	if (!code_completion_active) {
		return;
	}
	ERR_FAIL_INDEX(p_index, code_completion_options.size());
	code_completion_current_selected = p_index;
	code_completion_force_item_center = -1;
	queue_redraw();
}
void CodeEdit::confirm_code_completion(bool p_replace) {
	if (!is_editable() || !code_completion_active) {
		return;
	}
	if (GDVIRTUAL_CALL(_confirm_code_completion, p_replace)) {
		return;
	}
	char32_t caret_last_completion_char;
	begin_complex_operation();
	Vector<int> caret_edit_order = get_caret_index_edit_order();
	for (const int &i : caret_edit_order) {
		int caret_line = get_caret_line(i);
		const String &insert_text = code_completion_options[code_completion_current_selected].insert_text;
		const String &display_text = code_completion_options[code_completion_current_selected].display;
		if (p_replace) {