### 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)

ClassDB::bind_method(D_METHOD("add_code_completion_option", "type", "display_text", "insert_text", "text_color", "icon", "value"), &CodeEdit::add_code_completion_option, DEFVAL(Color(1, 1, 1)), DEFVAL(Ref<Resource>()), DEFVAL(Variant::NIL));
	ClassDB::bind_method(D_METHOD("update_code_completion_options", "force"), &CodeEdit::update_code_completion_options);
	ClassDB::bind_method(D_METHOD("get_code_completion_options"), &CodeEdit::get_code_completion_options);
	ClassDB::bind_method(D_METHOD("get_code_completion_option", "index"), &CodeEdit::get_code_completion_option);
	ClassDB::bind_method(D_METHOD("get_code_completion_selected_index"), &CodeEdit::get_code_completion_selected_index);
	ClassDB::bind_method(D_METHOD("set_code_completion_selected_index", "index"), &CodeEdit::set_code_completion_selected_index);
	ClassDB::bind_method(D_METHOD("confirm_code_completion", "replace"), &CodeEdit::confirm_code_completion, DEFVAL(false));
	ClassDB::bind_method(D_METHOD("cancel_code_completion"), &CodeEdit::cancel_code_completion);
	ClassDB::bind_method(D_METHOD("set_code_completion_enabled", "enable"), &CodeEdit::set_code_completion_enabled);
	ClassDB::bind_method(D_METHOD("is_code_completion_enabled"), &CodeEdit::is_code_completion_enabled);
	ClassDB::bind_method(D_METHOD("set_code_completion_prefixes", "prefixes"), &CodeEdit::set_code_completion_prefixes);
	ClassDB::bind_method(D_METHOD("get_code_completion_prefixes"), &CodeEdit::get_code_completion_prefixes);
	
	GDVIRTUAL_BIND(_confirm_code_completion, "replace")
	GDVIRTUAL_BIND(_request_code_completion, "force")
	GDVIRTUAL_BIND(_filter_code_completion_candidates, "candidates")
	
	ClassDB::bind_method(D_METHOD("set_line_length_guidelines", "guideline_columns"), &CodeEdit::set_line_length_guidelines);
	ClassDB::bind_method(D_METHOD("get_line_length_guidelines"), &CodeEdit::get_line_length_guidelines);
	
	ClassDB::bind_method(D_METHOD("set_symbol_lookup_on_click_enabled", "enable"), &CodeEdit::set_symbol_lookup_on_click_enabled);
	ClassDB::bind_method(D_METHOD("is_symbol_lookup_on_click_enabled"), &CodeEdit::is_symbol_lookup_on_click_enabled);
	ClassDB::bind_method(D_METHOD("get_text_for_symbol_lookup"), &CodeEdit::get_text_for_symbol_lookup);
	ClassDB::bind_method(D_METHOD("set_symbol_lookup_word_as_valid", "valid"), &CodeEdit::set_symbol_lookup_word_as_valid);
	
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "symbol_lookup_on_click"), "set_symbol_lookup_on_click_enabled", "is_symbol_lookup_on_click_enabled");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "line_folding"), "set_line_folding_enabled", "is_line_folding_enabled");
	ADD_PROPERTY(PropertyInfo(Variant::PACKED_INT32_ARRAY, "line_length_guidelines"), "set_line_length_guidelines", "get_line_length_guidelines");
	ADD_GROUP("Gutters", "gutters_");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "gutters_draw_breakpoints_gutter"), "set_draw_breakpoints_gutter", "is_drawing_breakpoints_gutter");