### 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
break;
		}
		region = E.value;
	}
	
	if (region != -1 && end_position.x != -1 && (delimiters[region].line_only || end_position.x != get_line(p_line).length() + 1)) {
		end_position.y = p_line;
		return end_position;
	}
	
	if (region == -1) {
		end_position.x = -1;
		return end_position;
	}
	
	for (int i = p_line + 1; i < get_line_count(); i++) {
		if (delimiter_cache[i].size() < 1 || delimiter_cache[i].front()->value() != -1) {
			continue;
		}
		end_position.x = delimiter_cache[i].front()->key();
		
		if (get_line(i).length() > 0 && end_position.x != get_line(i).length() + 1) {
			end_position.y = i;
			break;
		}
		end_position.x = -1;
	}
	return end_position;
}
void CodeEdit::set_code_hint(const String &p_hint) {