### 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
CHECK(code_edit->get_comment_delimiters().size() == 1);
			
			code_edit->set_text(" \n #  # \n ");
			
			CHECK(code_edit->is_in_comment(0, 1) == -1);
			CHECK(code_edit->get_delimiter_start_position(0, 1) == OUTSIDE_DELIMETER);
			CHECK(code_edit->get_delimiter_end_position(0, 1) == OUTSIDE_DELIMETER);
			
			CHECK(code_edit->is_in_comment(1, 0) == -1);
			CHECK(code_edit->get_delimiter_start_position(1, 0) == OUTSIDE_DELIMETER);
			CHECK(code_edit->get_delimiter_end_position(1, 0) == OUTSIDE_DELIMETER);
			
			CHECK(code_edit->is_in_comment(1, 2) != -1);
			CHECK(code_edit->get_delimiter_start_position(1, 2) == Point2(2, 1));
			CHECK(code_edit->get_delimiter_end_position(1, 2) == Point2(5, 1));
			
			CHECK(code_edit->is_in_comment(1, 6) == -1);
			CHECK(code_edit->get_delimiter_start_position(1, 6) == OUTSIDE_DELIMETER);
			CHECK(code_edit->get_delimiter_end_position(1, 6) == OUTSIDE_DELIMETER);
			
			CHECK(code_edit->is_in_comment(2, 1) == -1);
			CHECK(code_edit->get_delimiter_start_position(2, 1) == OUTSIDE_DELIMETER);
			CHECK(code_edit->get_delimiter_end_position(2, 1) == OUTSIDE_DELIMETER);
			
			int idx = code_edit->is_in_comment(1, 2);
			CHECK(code_edit->get_delimiter_start_key(idx) == "#");
			CHECK(code_edit->get_delimiter_end_key(idx) == "#");
			
			code_edit->set_text(" \n # \n\n # \n ");