### 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
)");
	
	code_edit->set_caret_line(0);
	code_edit->duplicate_lines();
	CHECK(code_edit->get_line(0) == "extends Node");
	CHECK(code_edit->get_line(1) == "extends Node");
	CHECK(code_edit->get_line(2) == "");
	
	code_edit->set_caret_line(6);
	code_edit->set_caret_column(15);
	code_edit->select(4, 8, 6, 15);
	code_edit->duplicate_lines();
	CHECK(code_edit->get_line(6) == "\tvar c := a + b");
	CHECK(code_edit->get_line(7) == "\tvar a := len(OS.get_cmdline_args())");
	CHECK(code_edit->get_line(8) == "\tvar b := get_child_count()");
	CHECK(code_edit->get_line(9) == "\tvar c := a + b");
	CHECK(code_edit->get_line(10) == "\tfor i in range(c):");
	
	code_edit->deselect();
	code_edit->set_caret_line(10);
	code_edit->set_caret_column(1);
	code_edit->add_caret(11, 2);
	code_edit->add_caret(12, 1);
	code_edit->duplicate_lines();
	CHECK(code_edit->get_line(9) == "\tvar c := a + b");
	CHECK(code_edit->get_line(10) == "\tfor i in range(c):");
	CHECK(code_edit->get_line(11) == "\tfor i in range(c):");
	CHECK(code_edit->get_line(12) == "\t\tprint(\"This is the solution: \", sin(i))");
	CHECK(code_edit->get_line(13) == "\t\tprint(\"This is the solution: \", sin(i))");
	CHECK(code_edit->get_line(14) == "\tvar pos = get_index() - 1");