@Override
    protected @Nullable DiffRequest loadRequestFast(@NotNull DiffRequestProducer provider) {
      if (provider instanceof ShelvedWrapperDiffRequestProducer) {
        ShelvedChange shelvedChange = ((ShelvedWrapperDiffRequestProducer)provider).getWrapper().getShelvedChange();
        if (shelvedChange != null && myPreloader.isPatchFileChanged(shelvedChange.getPatchPath())) return null;
      }

      return super.loadRequestFast(provider);
    }
@Override
    protected @Nullable DiffRequest loadRequestFast(@NotNull DiffRequestProducer provider)