Change in output as a result of patch

The patch in the previous mail results in a change in output as
specified below.

    $ git branch
    * master
      foo
      bar

Before patch,

    $ git branch -m hypothet master
    fatal: A branch named 'master' already exists.

    $ git branch -m hypothet real
    error: refname refs/heads/hypothet not found
    fatal: Branch rename failed

After patch,

    $ git branch -m hypothet master
    fatal: Branch 'hypothet' does not exist.

    $ git branch -m hypothet real
    fatal: Branch 'hypothet' does not exist.

-- 
Kaartic