Code review comment for lp:~craighewetson-deactivatedaccount/bzr/update_with_local_commit

Tested in the case where a checkout was unbound (changed to a branch).
Then a normal commit is done on fileA, then an uncommitted change is made to fileA.
The branch is then changed back to a checkout (bzr bind).
When attempting an bzr update the error message is displayed as expected.

Let me know of other corner cases so I can test this fix.