### Godot version

v4.0.stable.official [92bee43ad]

### System information

Linux - v4.0.stable.official [92bee43ad]

### Issue description

It gives you the possibility of removing unexisting key/value pairs from a dictionary.

### Steps to reproduce

![image](https://github.com/godotengine/godot/assets/69520693/35beadbe-bfdd-4176-9b26-222bbf69cafa)
![image](https://github.com/godotengine/godot/assets/69520693/7ed647e0-a2af-4e58-9f00-f77b7bc7bb02)
![image](https://github.com/godotengine/godot/assets/69520693/f08bf824-8408-45eb-bb84-f1dc7e19e392)


### Minimal reproduction project

N/A
dropping = true;
					edit->queue_redraw();
				}
			}
		} break;
		case NOTIFICATION_DRAG_END: {
			if (dropping) {
				dropping = false;
				edit->queue_redraw();
			}
		} break;
	}
}
void EditorPropertyArray::_edit_pressed() {
	Variant array = get_edited_property_value();
	if (!array.is_array() && edit->is_pressed()) {
		initialize_array(array);
		get_edited_object()->set(get_edited_property(), array);
	}
	get_edited_object()->editor_set_section_unfold(get_edited_property(), edit->is_pressed());
	update_property();
}
void EditorPropertyArray::_page_changed(int p_page) {
	if (updating) {
		return;
	}
	page_index = p_page;
	update_property();
}
void EditorPropertyArray::_length_changed(double p_page) {