### Godot version

4.2 RC2

### System information

Any

### Issue description

https://github.com/godotengine/godot/assets/61938263/42ed582f-7b87-424c-8d19-ba0650ead5aa

It should not be reset by pausing.

### Steps to reproduce

Pause AnimationPlaybackTrack

### Minimal reproduction project

N/A
case Animation::TYPE_AUDIO: {
				TrackCacheAudio *t = static_cast<TrackCacheAudio *>(track);
				Node *asp = Object::cast_to<Node>(t->object);
				if (asp) {
					t->object->call(SNAME("set_stream"), Ref<AudioStream>());
				}
			} break;
			default: {
			} 
		}
	}
}
Ref<AnimatedValuesBackup> AnimationMixer::make_backup() {
	Ref<AnimatedValuesBackup> backup;
	backup.instantiate();
	Ref<Animation> reset_anim = animation_set[SceneStringNames::get_singleton()->RESET].animation;
	ERR_FAIL_COND_V(reset_anim.is_null(), Ref<AnimatedValuesBackup>());
	_blend_init();
	PlaybackInfo pi;
	pi.time = 0;
	pi.delta = 0;
	pi.seeked = true;
	pi.weight = 1.0;
	make_animation_instance(SceneStringNames::get_singleton()->RESET, pi);
	_build_backup_track_cache();
	backup->set_data(track_cache);
	clear_animation_instances();
	return backup;
}
void AnimationMixer::reset() {