Sqrt on complex number loops

[andriusstank]

Sqrt enters infinite loop for some complex numbers, for example:

ghci> import NumHask.Prelude 
ghci> sqrt ((-1) +: 1) :: Complex Double
Complex {complexPair = (*** Exception: stack overflow

I have traced it to log from EuclideanPair here:

instance (Ord a, TrigField a, ExpField a) => ExpField (EuclideanPair a) where
  ...
  log (EuclideanPair (x, y)) = EuclideanPair (log (sqrt (x * x + y * y)), atan2' y x)
    where
      atan2' y x
        | ...
        | (x P.<= zero P.&& y P.< zero) || (x P.< zero) =
            negate (atan2' (negate y) x)
        | ...

A clause before in atan2' is | x P.< one P.&& y P.> one = ..., it seems to have a typo - there should be zeros instead of ones. I have fixed that, but it still loops with log (EuclideanPair (-1, 0)), so there must be something more. There are many tricky cases, I'm not sure how to fix it properly.