Heroku deployment issues

I did couple test deployments on Heroku today from Windows box and noticed two issues.

When I run the git push heroku master heroku

1. Tells me "Gemfile.lock detected, ignoring it" everytime I do the push
2. It installs every gem everytime I push even though the Gemfile and Gemfile.lock haven't changed

Looked around but don't seem to find anything meaningful on this issue.

I am on Rails 开发者_JAVA百科3.0.5 and Ruby 1.9.2p180