message: Fixed apparent bug.
diff: @@ -301,7 +301,8 @@ public:
  uint32_t startWord, off;
  computeItemPosition(startingAt, startWord, off);
  - const size_t words = byteCount();
  + // const size_t words = byteCount();
  + const auto words = byteCount() / sizeof(size_t);
  for (size_t i = startWord; i < words; i++) {
  const size_t bits = Super::_bits[i];
  if (bits == ~0UL) {
  