### 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
carets_to_remove.sort();
	for (int i = carets_to_remove.size() - 1; i >= 0; i--) {
		remove_caret(carets_to_remove[i]);
	}
	
	int first_region_start = -1;
	for (int caret_idx : get_caret_index_edit_order()) {
		if (!has_selection(caret_idx)) {
			continue;
		}
		int from_line = get_selection_from_line(caret_idx);
		if (first_region_start == -1 || from_line < first_region_start) {
			first_region_start = from_line;
		}
		int to_line = get_selection_to_line(caret_idx);
		set_line(to_line, get_line(to_line) + "\n" + code_region_end_string);
		insert_line_at(from_line, code_region_start_string + " " + RTR("New Code Region"));
		fold_line(from_line);
	}
	
	remove_secondary_carets();
	set_caret_line(first_region_start);
	int tag_length = code_region_start_string.length() + RTR("New Code Region").length() + 1;
	set_caret_column(tag_length);
	select(first_region_start, code_region_start_string.length() + 1, first_region_start, tag_length);
	end_complex_operation();
	queue_redraw();
}
String CodeEdit::get_code_region_start_tag() const {