### 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)

code_hint = p_hint;
	code_hint_xpos = -0xFFFF;
	queue_redraw();
}
void CodeEdit::set_code_hint_draw_below(bool p_below) {
	code_hint_draw_below = p_below;
	queue_redraw();
}
void CodeEdit::set_code_completion_enabled(bool p_enable) {
	code_completion_enabled = p_enable;
}
bool CodeEdit::is_code_completion_enabled() const {
	return code_completion_enabled;
}
void CodeEdit::set_code_completion_prefixes(const TypedArray<String> &p_prefixes) {
	code_completion_prefixes.clear();
	for (int i = 0; i < p_prefixes.size(); i++) {
		const String prefix = p_prefixes[i];
		ERR_CONTINUE_MSG(prefix.is_empty(), "Code completion prefix cannot be empty.");
		code_completion_prefixes.insert(prefix[0]);
	}
}
TypedArray<String> CodeEdit::get_code_completion_prefixes() const {