zsh-users/antigen — pull request #19 by Tarrasch (2012-08-10 16:18:56+00:00)
Title: Remove "already on branch xxx" on every shell startup

If you have a

antigen-bundle some/repo --branch=something

it will tell you on each shell startup (except for the first one where the repo is initialized) `already on branch 'something'`. This pull request includes a fix + a test.