Hello,

> If I print this in a workspace (or even code it in a method) I get
> 
> a := 'ab'.
> b := 'cd'.
> a become: b.
> a = 'cd'
> 
> --> false

  As Andreas says, the compiler merges the literals.  Note that,
probably you've already noticed, if you evaluate the above lines one
by one, the last answer will be true.  Funky, isn't it?^^;

-- Yoshiki