### 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
}
	
	int start_indent = get_indent_level(p_line);
	for (int i = p_line + 1; i < get_line_count(); i++) {
		if (is_in_string(i) != -1 || is_in_comment(i) != -1 || get_line(i).strip_edges().size() == 0) {
			continue;
		}
		return (get_indent_level(i) > start_indent);
	}
	return false;
}
void CodeEdit::fold_line(int p_line) {
	ERR_FAIL_INDEX(p_line, get_line_count());
	if (!is_line_folding_enabled() || !can_fold_line(p_line)) {
		return;
	}
	
	const int line_count = get_line_count() - 1;
	int end_line = line_count;
	
	if (is_line_code_region_start(p_line)) {
		int region_level = 0;
		for (int endregion_line = p_line + 1; endregion_line < get_line_count(); endregion_line++) {
			if (is_line_code_region_start(endregion_line)) {
				region_level += 1;
			}
			if (is_line_code_region_end(endregion_line)) {
				region_level -= 1;
				if (region_level == -1) {
					end_line = endregion_line;