### Godot version

4.2 rc2

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description


https://github.com/godotengine/godot/assets/2223172/2c1829fa-1dd7-4f5b-b04a-f557ace35b5e

You can either see autocompletion or argument list. It's especially annoying when using e.g. `Input.get_vector()` method which has multiple arguments difficult to remember.

### Steps to reproduce

1. Write `Input.get_vector(`
2. Remove `(`
3. Add `(`

### Minimal reproduction project

N/A
bool allow_unicode_handling = !(k->is_ctrl_pressed() || k->is_alt_pressed() || k->is_meta_pressed());
	
	if (code_completion_enabled && k->is_action("ui_text_completion_query", true)) {
		request_code_completion(true);
		accept_event();
		return;
	}
	if (code_completion_active) {
		if (k->is_action("ui_up", true)) {
			if (code_completion_current_selected > 0) {
				code_completion_current_selected--;
			} else {
				code_completion_current_selected = code_completion_options.size() - 1;
			}
			code_completion_force_item_center = -1;
			queue_redraw();
			accept_event();
			return;
		}
		if (k->is_action("ui_down", true)) {
			if (code_completion_current_selected < code_completion_options.size() - 1) {
				code_completion_current_selected++;
			} else {
				code_completion_current_selected = 0;
			}
			code_completion_force_item_center = -1;
			queue_redraw();
			accept_event();
			return;
		}