void removeSpecialException() {
    if (exceptions != null && !exceptions.isEmpty()) {
      for (Iterator<RVVException> it = exceptions.iterator(); it.hasNext();) {
        RVVException e = it.next();
        if (isSpecialException(e, this)) {
          it.remove();
        }
      }
      if (exceptions.isEmpty()) {
        exceptions = null;
      }
    }
  }
returns true if this holder has seen versions that the other holder hasn't
geode-core/src/main/java/org/apache/geode/internal/cache/versions/RegionVersionHolder.java