### 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
undo_redo->create_action(TTR("Animation Multi Change Keyframe Value"), UndoRedo::MERGE_ENDS);
						}
						Ref<Resource> prev = animation->audio_track_get_key_stream(track, key);
						undo_redo->add_do_method(animation.ptr(), "audio_track_set_key_stream", track, key, stream);
						undo_redo->add_undo_method(animation.ptr(), "audio_track_set_key_stream", track, key, prev);
						update_obj = true;
					} else if (name == "start_offset") {
						float value = p_value;
						if (!setting) {
							setting = true;
							undo_redo->create_action(TTR("Animation Multi Change Keyframe Value"), UndoRedo::MERGE_ENDS);
						}
						float prev = animation->audio_track_get_key_start_offset(track, key);
						undo_redo->add_do_method(animation.ptr(), "audio_track_set_key_start_offset", track, key, value);
						undo_redo->add_undo_method(animation.ptr(), "audio_track_set_key_start_offset", track, key, prev);
						update_obj = true;
					} else if (name == "end_offset") {
						float value = p_value;
						if (!setting) {
							setting = true;
							undo_redo->create_action(TTR("Animation Multi Change Keyframe Value"), UndoRedo::MERGE_ENDS);
						}
						float prev = animation->audio_track_get_key_end_offset(track, key);
						undo_redo->add_do_method(animation.ptr(), "audio_track_set_key_end_offset", track, key, value);
						undo_redo->add_undo_method(animation.ptr(), "audio_track_set_key_end_offset", track, key, prev);
						update_obj = true;
					}
				} break;
				case Animation::TYPE_ANIMATION: {
					if (name == "animation") {