Hitting up arrow while command is running not working...

[James Carman]

First of all, yes, I'm impatient! :)  Anyway, I used to be able to hit the
up arrow while a command was executing (say feature:install or something)
so that I could bring up the next command I was going to run.  Now, it just
starts printing "[A[A[A" characters to the console.  Is there some way to
resurrect the old behavior.  I'm using 4.1.1.