grow right can't grow over last form

[Gozala]

Here is example:

(defn my-command
  []
  (|)(a)
  (b)
  (c)
  (d))

After grow right four times expected result is:

(defn my-command
  []
  (|(a)
   (b)
   (c)
   (d)))

Actual result is

(defn my-command
  []
  (|(a)
   (b)
   (c))
  (d))

I believe outer paren causes a bug, cause if last paren is on a next line everything works fine.