### Godot version

4.0.2.stable

### System information

Manjaro Linux 5.15.113-1-MANJARO

### Issue description

When I was trying to figure out #77725 i stumbled upon this:
![image](https://github.com/godotengine/godot/assets/14893831/364b89ce-00b2-4aef-a85e-f10c16936005)

pressing enter results in 
![image](https://github.com/godotengine/godot/assets/14893831/07d53b82-c919-4635-80e2-e1809b6bb11f)


It looks simmilar to #48436 , but it started happening to every code completion and I have absolutely no clue how it happened.

It happened after I moved(using shift+arrow keys to select, tab to indent and alt+arrow keys to move down)  the three dicts in the picture to within the function and added the dict 4.

### Steps to reproduce

Here's roughly what I did 
(might be slightly inaccurate, I was basically messing around to try and see the scope of $77725 when it happened)

1) create an empty script
2) declare a couple of dictionaries
3) declare a function
4) try out code completion within the function
5) create a lambda within the function and try 4) again
6) move the dictionaries' declaration within the function using keyboard shortcuts and try 4)




### Minimal reproduction project

N/A
switch (p_what) {
		case NOTIFICATION_THEME_CHANGED: {
			set_gutter_width(main_gutter, get_line_height());
			set_gutter_width(line_number_gutter, (line_number_digits + 1) * theme_cache.font->get_char_size('0', theme_cache.font_size).width);
			set_gutter_width(fold_gutter, get_line_height() / 1.2);
		} 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 = theme_cache.style_normal->get_margin(SIDE_LEFT) + get_total_gutter_width();
				const int xmargin_end = size.width - theme_cache.style_normal->get_margin(SIDE_RIGHT) - (is_drawing_minimap() ? get_minimap_width() : 0);
				const float char_size = theme_cache.font->get_char_size('0', theme_cache.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) ? theme_cache.line_length_guideline_color : theme_cache.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);
					}
				}
			}
			if (caret_visible) {
				const bool draw_code_completion = code_completion_active && !code_completion_options.is_empty();