### 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_completion_existing_color = get_theme_color(SNAME("completion_existing_color"));
			line_length_guideline_color = get_theme_color(SNAME("line_length_guideline_color"));
		} break;
		case NOTIFICATION_DRAW: {
			RID ci = get_canvas_item();
			const Size2 size = get_size();
			const bool caret_visible = is_caret_visible();
			const bool rtl = is_layout_rtl();
			const int row_height = get_line_height();
			if (line_length_guideline_columns.size() > 0) {
				const int xmargin_beg = style_normal->get_margin(SIDE_LEFT) + get_total_gutter_width();
				const int xmargin_end = size.width - style_normal->get_margin(SIDE_RIGHT) - (is_drawing_minimap() ? get_minimap_width() : 0);
				const float char_size = font->get_char_size('0', font_size).width;
				for (int i = 0; i < line_length_guideline_columns.size(); i++) {
					const int xoffset = xmargin_beg + char_size * (int)line_length_guideline_columns[i] - get_h_scroll();
					if (xoffset > xmargin_beg && xoffset < xmargin_end) {
						Color guideline_color = (i == 0) ? line_length_guideline_color : line_length_guideline_color * Color(1, 1, 1, 0.5);
						if (rtl) {
							RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(size.width - xoffset, 0), Point2(size.width - xoffset, size.height), guideline_color);
							continue;
						}
						RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(xoffset, 0), Point2(xoffset, size.height), guideline_color);
					}
				}
			}
			bool code_completion_below = false;
			if (caret_visible && code_completion_active && code_completion_options.size() > 0) {
				Ref<StyleBox> csb = get_theme_stylebox(SNAME("completion"));
				const int code_completion_options_count = code_completion_options.size();
				const int lines = MIN(code_completion_options_count, code_completion_max_lines);