### 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
}
void AnimationMixer::_blend_calc_total_weight() {
	for (const AnimationInstance &ai : animation_instances) {
		Ref<Animation> a = ai.animation_data.animation;
		real_t weight = ai.playback_info.weight;
		Vector<real_t> track_weights = ai.playback_info.track_weights;
		Vector<int> processed_indices;
		for (int i = 0; i < a->get_track_count(); i++) {
			if (!a->track_is_enabled(i)) {
				continue;
			}
			NodePath path = a->track_get_path(i);
			if (!track_cache.has(path)) {
				continue; 
			}
			TrackCache *track = track_cache[path];
			int blend_idx = track_map[path];
			if (processed_indices.has(blend_idx)) {
				continue; 
			}
			ERR_CONTINUE(blend_idx < 0 || blend_idx >= track_count);
			real_t blend = blend_idx < track_weights.size() ? track_weights[blend_idx] * weight : weight;
			track->total_weight += blend;
			processed_indices.push_back(blend_idx);
		}
	}
}
void AnimationMixer::_blend_process(double p_delta, bool p_update_only) {