public @Nullable Content findOrRestoreContentIfNeeded(@NotNull String key) {
    Content content = findContent(key);
    if (content == null) {
      content = findMinimizedContent(key);
      if (content != null) {
        restore(content);
      }
    }
    return content;
  }
public @Nullable Content findOrRestoreContentIfNeeded(@NotNull String key)