### 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
const bool draw_code_hint = !code_hint.is_empty();
				
				Size2 code_hint_minsize;
				if (draw_code_hint) {
					const int font_height = theme_cache.font->get_height(theme_cache.font_size);
					Vector<String> code_hint_lines = code_hint.split("\n");
					int line_count = code_hint_lines.size();
					int max_width = 0;
					for (int i = 0; i < line_count; i++) {
						max_width = MAX(max_width, theme_cache.font->get_string_size(code_hint_lines[i], HORIZONTAL_ALIGNMENT_LEFT, -1, theme_cache.font_size).x);
					}
					code_hint_minsize = theme_cache.code_hint_style->get_minimum_size() + Size2(max_width, line_count * font_height + (theme_cache.line_spacing * line_count - 1));
					int offset = theme_cache.font->get_string_size(code_hint_lines[0].substr(0, code_hint_lines[0].find(String::chr(0xFFFF))), HORIZONTAL_ALIGNMENT_LEFT, -1, theme_cache.font_size).x;
					if (code_hint_xpos == -0xFFFF) {
						code_hint_xpos = get_caret_draw_pos().x - offset;
					}
					Point2 hint_ofs = Vector2(code_hint_xpos, get_caret_draw_pos().y);
					if (code_hint_draw_below) {
						hint_ofs.y += theme_cache.line_spacing / 2.0f;
					} else {
						hint_ofs.y -= (code_hint_minsize.y + row_height) - theme_cache.line_spacing;
					}
					draw_style_box(theme_cache.code_hint_style, Rect2(hint_ofs, code_hint_minsize));
					int yofs = 0;
					for (int i = 0; i < line_count; i++) {
						const String &line = code_hint_lines[i];
						int begin = 0;
						int end = 0;
						if (line.contains(String::chr(0xFFFF))) {
							begin = theme_cache.font->get_string_size(line.substr(0, line.find(String::chr(0xFFFF))), HORIZONTAL_ALIGNMENT_LEFT, -1, theme_cache.font_size).x;