message: Matrix identity: fix scalar type
diff: @@ -222,7 +222,7 @@ template <typename T, enable_if_matrix_t<T> = 0>
  ENOKI_INLINE T identity(size_t size = 1) {
  T result = zero<T>(size);
  for (size_t i = 0; i < T::Size; ++i)
  - result(i, i) = full<typename T::Entry>(1.f, size);
  + result(i, i) = full<typename T::Entry>(scalar_t<T>(1.f), size);
  return result;
  }
  