### Godot version

4.0.rc

### System information

Any

### Issue description

If the RESET animation is generated at the same time as the Bezier track is generated, the bezier edit button will not be active.

![image](https://user-images.githubusercontent.com/61938263/218256176-88b1b196-7b6b-4404-84ad-e8694f23bb1b.png)

Also, if you delete a track in the Bezier Editor, or in undo redo, it will not update correctly.

### Steps to reproduce

![image](https://user-images.githubusercontent.com/61938263/218256230-4b0219d5-87e4-453a-8294-59f8feb0cfd5.png)


### Minimal reproduction project

N/A
Dictionary d = p_data;
	if (!d.has("type")) {
		return false;
	}
	String type = d["type"];
	if (type != "animation_track") {
		return false;
	}
	
	if (get_editor()->is_grouping_tracks()) {
		String base_path = animation->track_get_path(track);
		base_path = base_path.get_slice(":", 0); 
		if (d["group"] != base_path) {
			return false;
		}
	}
	if (p_point.y < get_size().height / 2) {
		dropping_at = -1;
	} else {
		dropping_at = 1;
	}
	const_cast<AnimationTrackEdit *>(this)->queue_redraw();
	return true;
}
void AnimationTrackEdit::drop_data(const Point2 &p_point, const Variant &p_data) {