I just commented on this in bug #121992. The /root/.bashrc on the live CD is old and not like the one in the installed bash package. This is actually serious, because when you install from the live CD with Ubiquity, this old file gets copied over to your new system, and you'll miss all the changes and bug fixes in .bashrc and .profile from the last year.
So it's not a bug in the bash package AFAICS, but in how the live CD is put together.
I just commented on this in bug #121992. The /root/.bashrc on the live CD is old and not like the one in the installed bash package. This is actually serious, because when you install from the live CD with Ubiquity, this old file gets copied over to your new system, and you'll miss all the changes and bug fixes in .bashrc and .profile from the last year.
So it's not a bug in the bash package AFAICS, but in how the live CD is put together.