### 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
timeline->queue_redraw();
	timeline->update_values();
	bool same = true;
	if (animation.is_null()) {
		return;
	}
	if (track_edits.size() == animation->get_track_count()) {
		
		for (int i = 0; i < track_edits.size(); i++) {
			if (track_edits[i]->get_path() != animation->track_get_path(i)) {
				same = false;
				break;
			}
		}
	} else {
		same = false;
	}
	if (same) {
		_redraw_tracks();
		_redraw_groups();
	} else {
		_update_tracks();
	}
	bezier_edit->queue_redraw();
	_update_step_spinbox();
	emit_signal(SNAME("animation_step_changed"), animation->get_step());
	emit_signal(SNAME("animation_len_changed"), animation->get_length());
	animation_changing_awaiting_update = false;
}
MenuButton *AnimationTrackEditor::get_edit_menu() {