### 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)

deselect(i);
			if (p_above) {
				if (cl > 0) {
					set_caret_line(cl - 1, false, true, 0, i);
					set_caret_column(get_line(get_caret_line(i)).length(), i == 0, i);
				} else {
					set_caret_column(0, i == 0, i);
					first_line = true;
				}
			} else {
				set_caret_column(line.length(), i == 0, i);
			}
		}
		insert_text_at_caret(ins, i);
		if (first_line) {
			set_caret_line(0, i == 0, true, 0, i);
		} else if (brace_indent) {
			set_caret_line(get_caret_line(i) - 1, false, true, 0, i);
			set_caret_column(get_line(get_caret_line(i)).length(), i == 0, i);
		}
	}
	end_complex_operation();
}
void CodeEdit::set_auto_brace_completion_enabled(bool p_enabled) {
	auto_brace_completion_enabled = p_enabled;
}
bool CodeEdit::is_auto_brace_completion_enabled() const {
	return auto_brace_completion_enabled;
}
void CodeEdit::set_highlight_matching_braces_enabled(bool p_enabled) {