### 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
float value;
					Error err = a->try_blend_shape_track_interpolate(i, time, &value);
					
					if (err != OK) {
						continue;
					}
					value = post_process_key_value(a, i, value, t->object, t->shape_index);
					t->value += (value - t->init_value) * blend;
#endif 
				} break;
				case Animation::TYPE_VALUE: {
					if (Math::is_zero_approx(blend)) {
						continue; 
					}
					TrackCacheValue *t = static_cast<TrackCacheValue *>(track);
					if (t->is_continuous) {
						Variant value = a->value_track_interpolate(i, time);
						value = post_process_key_value(a, i, value, t->object);
						if (value == Variant()) {
							continue;
						}
						
						if (t->is_using_angle) {
							
							
							float rot_a = t->value;
							float rot_b = value;
							float rot_init = t->init_value;
							rot_a = Math::fposmod(rot_a, (float)Math_TAU);
							rot_b = Math::fposmod(rot_b, (float)Math_TAU);