Proposed resolution:

In section [memory] change:,

template <class ForwardIterator, class Size, class T>
  void ForwardIterator uninitialized_fill_n(ForwardIterator first, Size n, const T& x);

In section [uninitialized.fill.n] change,

template <class ForwardIterator, class Size, class T>
  void ForwardIterator uninitialized_fill_n(ForwardIterator first, Size n, const T& x);

1 Effects:

for (; n--; ++first)
  ::new (static_cast<void*>(&*first))
    typename iterator_traits<ForwardIterator>::value_type(x);
return first;