[libcxx]: `string::__insert_with_size` misses `std::move` before calling `__insert_from_safe_copy`

[hewillk]

llvm-project/libcxx/include/string

Line 3085 in 935d753

return __insert_from_safe_copy(__n, __ip, __first, __last);

testcase:

#include <sstream>
#include <string>
#include <ranges>
 
int main() {
  auto is = std::istringstream{"a b c d"};
  auto chars = std::views::istream<int>(is);
  std::string s;
  s.insert_range(s.begin(), std::views::counted(chars.begin(), 3));
}

https://godbolt.org/z/Eh4EP8avE