bzr branches doesn't indicate current colocated branch

[Neil Martinsen-Burrell]

nmb@garble[~/tmp]$ bzr init --development-colo file:test,branch=trunk
Created a standalone tree (format: development-colo)
nmb@garble[~/tmp]$ cd test
nmb@garble[~/tmp/test]$ bzr info
Unshared repository with trees (format: development-colo)
Location:
  repository: .
nmb@garble[~/tmp/test]$ bzr branch lp:bzr-colo file:,branch=colo
Branched 118 revisions.
nmb@garble[~/tmp/test]$ bzr branches
 trunk
 colo

This doesn't show which of the two colocated branches is the current one. There should be some indication of which branch is the one currently bound to the working tree.