### 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_hint = p_hint;
	code_hint_xpos = -0xFFFF;
	queue_redraw();
}
void CodeEdit::set_code_hint_draw_below(bool p_below) {
	code_hint_draw_below = p_below;
	queue_redraw();
}
void CodeEdit::set_code_completion_enabled(bool p_enable) {
	code_completion_enabled = p_enable;
}
bool CodeEdit::is_code_completion_enabled() const {
	return code_completion_enabled;
}
void CodeEdit::set_code_completion_prefixes(const TypedArray<String> &p_prefixes) {
	code_completion_prefixes.clear();
	for (int i = 0; i < p_prefixes.size(); i++) {
		const String prefix = p_prefixes[i];
		ERR_CONTINUE_MSG(prefix.is_empty(), "Code completion prefix cannot be empty.");
		code_completion_prefixes.insert(prefix[0]);
	}
}
TypedArray<String> CodeEdit::get_code_completion_prefixes() const {