tab completion on ~username stopped working in Ubuntu 10.10

Binary package hint: bash

In Ubuntu 10.04 and before, typing a tilde followed by a part of a username and pressing tab would complete the username and add a slash.

For example, if a user 'sander' exists on the system, this:

root@vmhost:~# cd ~san

followed by <TAB> would result in:

root@vmhost:~# cd ~sander/

Starting with Ubuntu 10.10, nothing happens after pressing TAB.

Bash packages on 10.04:

ii bash 4.1-2ubuntu3 The GNU Bourne Again SHell
ii bash-completion 1:1.1-3ubuntu2 programmable completion for the bash shell

On 10.10:

ii bash 4.1-2ubuntu4 The GNU Bourne Again SHell
ii bash-completion 1:1.2-2ubuntu1.1 programmable completion for the bash shell

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: bash 4.2-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Thu May 5 21:22:51 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: bash
UpgradeStatus: Upgraded to natty on 2011-04-28 (7 days ago)