Wrong sha listed in release tag history

[amsbhatt]

rake acceptance deploy[6d1dca9f5dc18e96738367bcf79425a2604bb624]

cd "/Users/imogen/workspace/sumuru" && git show-ref
cd "/Users/imogen/workspace/sumuru" && git push origin :refs/tags/acceptance/20120626014504
To git@github.com:milyoni/sumuru.git
 - [deleted]         acceptance/20120626014504
cd "/Users/imogen/workspace/sumuru" && git show-ref
cd "/Users/imogen/workspace/sumuru" && git update-ref -d refs/tags/acceptance/20120626014504
cd "/Users/imogen/workspace/sumuru" && git show-ref
cd "/Users/imogen/workspace/sumuru" && git fetch origin refs/tags/*:refs/tags/*
cd "/Users/imogen/workspace/sumuru" && git update-ref refs/tags/acceptance/20120808221628 ad1a50ce7433ad166131a3171c1e165b798ae11c
git push origin refs/tags/acceptance/20120808221628
Total 0 (delta 0), reused 0 (delta 0)
To git@github.com:milyoni/sumuru.git
 * [new tag]         acceptance/20120808221628 -> acceptance/20120808221628
heroku run rake db:use_stripe_test_keys --app sumuru-acceptance-cedar
Running rake db:use_stripe_test_keys attached to terminal... up, run.1
DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/Rakefile:9)
DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/Rakefile:9)

*** AUTO TAGGER: release tag history:
 ** ci           ad1a50 [Finishes #33936863] - admins can send invitations
 ** acceptance   ad1a50 [Finishes #33936863] - admins can send invitations
 ** staging      8b4f8f Fixed spec. Upgraded database_cleaner.
 ** production   8b4f8f Fixed spec. Upgraded database_cleaner.