bug in epochArithmeticMod ?

[SteveAlexander]

In epochArithmeticMod in utilities.dart, there is a repeated if statement. Is it meant to be y in the second one?

/// This returns a pattern consistent with epoch (or calendar) based times
/// [-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5]
/// [ 1,  2,  0,  1,  2, 0, 1, 2, 0, 1, 2]
int epochArithmeticMod(num x, int y) {
  if (x >= 0) return x % y;
  if (x >= 0) return x % y;
  return -(y-x)%y;
}