### 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)

highlight_matching_braces_enabled = p_enabled;
	queue_redraw();
}
bool CodeEdit::is_highlight_matching_braces_enabled() const {
	return highlight_matching_braces_enabled;
}
void CodeEdit::add_auto_brace_completion_pair(const String &p_open_key, const String &p_close_key) {
	ERR_FAIL_COND_MSG(p_open_key.is_empty(), "auto brace completion open key cannot be empty");
	ERR_FAIL_COND_MSG(p_close_key.is_empty(), "auto brace completion close key cannot be empty");
	for (int i = 0; i < p_open_key.length(); i++) {
		ERR_FAIL_COND_MSG(!is_symbol(p_open_key[i]), "auto brace completion open key must be a symbol");
	}
	for (int i = 0; i < p_close_key.length(); i++) {
		ERR_FAIL_COND_MSG(!is_symbol(p_close_key[i]), "auto brace completion close key must be a symbol");
	}
	int at = 0;
	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
		ERR_FAIL_COND_MSG(auto_brace_completion_pairs[i].open_key == p_open_key, "auto brace completion open key '" + p_open_key + "' already exists.");
		if (p_open_key.length() < auto_brace_completion_pairs[i].open_key.length()) {
			at++;
		}
	}
	BracePair brace_pair;
	brace_pair.open_key = p_open_key;
	brace_pair.close_key = p_close_key;
	auto_brace_completion_pairs.insert(at, brace_pair);
}
void CodeEdit::set_auto_brace_completion_pairs(const Dictionary &p_auto_brace_completion_pairs) {