scion-completing-read will not accept "enter" key... keeps scrolling to multiline

[rrnewton]

This is a bit confusing because if I call completing-read directly, that seems to work properly, even the four argument variant (which is used by scion.el):

(completing-read "FOo: " '("1" "2") nil t)

Works fine.. (tab completion, enter key), but something about how scion calls it causes a problem. If I skip the scion-completing-read business by calling (scion-load '(:file "B.hs")) directly, then the file loads successfully.

Emacs 23.1.1 Mac os X / X11
Scion 0.3 (98bc21b)
Atto lisp 0.2 (0562e167700d307ce9046b231449d833f7881ebc)