### 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_line(0) == "    test");
		CHECK(code_edit->get_line(1) == "text");
		
		code_edit->set_text("test\ntext");
		code_edit->select(0, 4, 1, 0);
		code_edit->do_indent();
		CHECK(code_edit->get_line(0) == "    test");
		CHECK(code_edit->get_line(1) == "text");
		
		code_edit->set_text("test");
		code_edit->select(0, 1, 0, 2);
		code_edit->do_indent();
		CHECK(code_edit->get_selection_from_column() == 5);
		CHECK(code_edit->get_selection_to_column() == 6);
		CHECK(code_edit->get_line(0) == "    test");
	}
	SUBCASE("[CodeEdit] unindent tabs") {
		code_edit->set_indent_size(4);
		code_edit->set_auto_indent_enabled(true);
		code_edit->set_indent_using_spaces(false);
		
		code_edit->set_text("\t");
		code_edit->set_editable(false);
		code_edit->unindent_lines();
		CHECK(code_edit->get_line(0) == "\t");
		code_edit->unindent_lines();
		CHECK(code_edit->get_line(0) == "\t");
		code_edit->set_editable(true);
		
		code_edit->unindent_lines();