abbrevs in minibuffers

[Eugene C. Ciccarelli <ECC at MIT-AI>]

In ZWEI in Remote-File 10.0, LMFILE-Remote 17.1, MIT-Specific 9.0,
System 86.36, ZMail 45.1, microcode 123, Saver, on Lisp Machine Nine:

Is word abbrev expansion turned off now in minibuffers?  I
generally find my abbrevs not expanding in them, but I think
they do if I finish typing the abbrev before the minibuffer is
redisplayed.  Strange.  And if it is deliberate that they don't
expand in minibuffers, how can I arrange to have my minibuffers
set back to expanding abbrevs?