### 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
deselect(i);
			if (p_above) {
				if (cl > 0) {
					set_caret_line(cl - 1, false, true, 0, i);
					set_caret_column(get_line(get_caret_line(i)).length(), i == 0, i);
				} else {
					set_caret_column(0, i == 0, i);
					first_line = true;
				}
			} else {
				set_caret_column(line.length(), i == 0, i);
			}
		}
		insert_text_at_caret(ins, i);
		if (first_line) {
			set_caret_line(0, i == 0, true, 0, i);
		} else if (brace_indent) {
			set_caret_line(get_caret_line(i) - 1, false, true, 0, i);
			set_caret_column(get_line(get_caret_line(i)).length(), i == 0, i);
		}
	}
	end_complex_operation();
}
void CodeEdit::set_auto_brace_completion_enabled(bool p_enabled) {
	auto_brace_completion_enabled = p_enabled;
}
bool CodeEdit::is_auto_brace_completion_enabled() const {
	return auto_brace_completion_enabled;
}
void CodeEdit::set_highlight_matching_braces_enabled(bool p_enabled) {