Another uninitialized warning with gcc 16 #103

#include <boost/multi_index_container.hpp>
#include <boost/multi_index/hashed_index.hpp>
#include <boost/multi_index/sequenced_index.hpp>
#include <boost/multi_index/key.hpp>

struct HashIndex;
struct SequenceIndex;

using HashedThenSequenced = boost::multi_index::multi_index_container<
  int,
  boost::multi_index::indexed_by<
    boost::multi_index::hashed_unique<
      boost::multi_index::tag<HashIndex>,
      boost::multi_index::identity<int>>,
    boost::multi_index::sequenced< boost::multi_index::tag<SequenceIndex> >
    >
  >;

int main()
{
  HashedThenSequenced container;
  return container.empty() ? 0 : 1;
}

/tools/pkg/gcc/16.2.0/bin/g++ -std=gnu++23 -Og -Wall -Wextra -Wuninitialized -Werror=uninitialized \
  -I/ws/jrichter/hf/def/toolsinclude \
  -c /ws/jrichter/hf/src/base/stl/check.multiIndexUninit.cc \
  -o /tmp/check.multiIndexUninit.o

...member' is used uninitialized [-Werror=uninitialized]