bzr branch teminated but download continues

[B. Clausius]

I did
$ bzr branch ubuntu:ia32-libs
After I noticed that this was a bad idea, I did ^C to stop it.
After a some hours, I've noticed the heavy network traffic and found:
$ pgrep -lf bzr
31508 ssh -oForwardX11=no -oForwardAgent=no -oClearAllForwardings=yes -oNoHostAuthenticationForLocalhost=yes -l barcc bazaar.launchpad.net bzr serve --inet --directory=/ --allow-writes
I killed it and traffic ended.

Expected:
This process should be stopped if bzr is interupted.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: bzr 2.5.0-2ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu2
Architecture: amd64
Date: Sat Apr 14 11:26:25 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
SourcePackage: bzr
UpgradeStatus: Upgraded to precise on 2012-03-31 (14 days ago)

[Matt Fischer (mfisch)]

Confirmed. Thanks for providing a good case to reproduce this, it was easy to repro.