### 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)

auto_brace_completion_pairs.clear();
	Array keys = p_auto_brace_completion_pairs.keys();
	for (int i = 0; i < keys.size(); i++) {
		add_auto_brace_completion_pair(keys[i], p_auto_brace_completion_pairs[keys[i]]);
	}
}
Dictionary CodeEdit::get_auto_brace_completion_pairs() const {
	Dictionary brace_pairs;
	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
		brace_pairs[auto_brace_completion_pairs[i].open_key] = auto_brace_completion_pairs[i].close_key;
	}
	return brace_pairs;
}
bool CodeEdit::has_auto_brace_completion_open_key(const String &p_open_key) const {
	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
		if (auto_brace_completion_pairs[i].open_key == p_open_key) {
			return true;
		}
	}
	return false;
}
bool CodeEdit::has_auto_brace_completion_close_key(const String &p_close_key) const {
	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
		if (auto_brace_completion_pairs[i].close_key == p_close_key) {
			return true;
		}
	}
	return false;
}
String CodeEdit::get_auto_brace_completion_close_key(const String &p_open_key) const {