### 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
symbol_lookup_new_word = get_word_at_pos(mpos);
				if (symbol_lookup_new_word != symbol_lookup_word) {
					emit_signal(SNAME("symbol_validate"), symbol_lookup_new_word);
				}
			} else if (!mm->is_command_or_control_pressed() || (!mm->get_button_mask().is_empty() && symbol_lookup_pos != get_line_column_at_pos(mpos))) {
				set_symbol_lookup_word_as_valid(false);
			}
		}
		bool scroll_hovered = code_completion_scroll_rect.has_point(mpos);
		if (is_code_completion_scroll_hovered != scroll_hovered) {
			is_code_completion_scroll_hovered = scroll_hovered;
			accept_event();
			queue_redraw();
		}
		if (is_code_completion_scroll_pressed) {
			_update_scroll_selected_line(mpos.y);
			accept_event();
			queue_redraw();
			return;
		}
		if (code_completion_active && code_completion_rect.has_point(mm->get_position())) {
			accept_event();
			return;
		}
	}
	Ref<InputEventKey> k = p_gui_input;
	if (TextEdit::alt_input(p_gui_input)) {
		accept_event();
		return;
	}