Elm whitespace confusion

Bad.elm

viewCounter address ( id, model ) =
  let context =
    Counter.Context
      (Signal.forwardTo address (Modify id))
      (Signal.forwardTo address (always (Remove id)))
  in
    Counter.viewWithRemoveButton context model
    
{-
==== error in Bad.elm:4:8: ====
I ran into something unexpected when parsing your code!
I am looking for one of the following things:
    whitespace
----
-}

gistfile1.txt

I'm a little confused about the whitespace rules that lead to Bad.elm failing.

Good.elm

viewCounter1 address ( id, model ) =
  let
    context =
      Counter.Context
        (Signal.forwardTo address (Modify id))
        (Signal.forwardTo address (always (Remove id)))
  in
    Counter.viewWithRemoveButton context model
    
    
viewCounter2 address ( id, model ) =
  let context =
      Counter.Context
        (Signal.forwardTo address (Modify id))
        (Signal.forwardTo address (always (Remove id)))
  in
    Counter.viewWithRemoveButton context model

viewCounter3 address ( id, model ) =
  let context =
    Counter.Context
        (Signal.forwardTo address (Modify id))
        (Signal.forwardTo address (always (Remove id)))
  in
    Counter.viewWithRemoveButton context model