fastestforward/heroku_san — pull request #117 by blazingpair (2012-12-05 18:19:28+00:00)
Title: Update lib/heroku_san/stage.rb

A tag can be used as the sha, and a commit can be used if the ref is peeled back into
a commit using '^{commit}'

also:
"d9e226c65fc04aea9c7fe1adce771b480688c206\^{commit}\^{commit}"
== d9e226c65fc04aea9c7fe1adce771b480688c206