[stmt.expand] Does the for loop that calculates N need to `void`-cast the return value of incrementing the iterator? CWG3044

From [stmt.expand]:

where N is the result of evaluating the expression

[] consteval {
  std::ptrdiff_t result = 0;
  for (auto i = begin; i != end; ++i, ++result);
  return result;                                // distance from begin to end
}()

Do we need to do a void casting here to comply with the standard's awareness of operator,?

[] consteval {
  std::ptrdiff_t result = 0;
  for (auto i = begin; i != end; ++i, (void)++result);
  return result;                                // distance from begin to end
}()

If so, is this LWG or CWG, or is this editorial (which I strongly doubt)?

Start with the linked [stmt.expand] paragraph and the C++ rules for the comma operator and discarded values. Compare the proposed loop expression with the standard wording and determine whether a void cast is required and which issue category applies. Done means resolving the question and updating the draft wording if a change is warranted.