odd coffeescript 1.3.3 behaviour with superflous indentation on first line

gistfile1.txt

$ cat > ok.coffee
  1
  2
$ cat > bad.coffee
  1
 2
$ coffee -cs < ok.coffee 
// Generated by CoffeeScript 1.3.3
(function() {
  1;

  2;



}).call(this);

$ coffee -cs < bad.coffee 
// Generated by CoffeeScript 1.3.3
(function() {
  1;



}).call(this);
$ # notice how "2" disappeared, no error, no warning!