Ruby on Rails - Testing changes on production

I'm trying to test some changes out on production without having to commit and push the changes because I only want to commit what actually works. The project I'm working on was created with Rails (3.0.2), and deploys with Capistrano (3.1). I've tried making changes in the root folder of my app and redeploying, and the changes are not reflected on the website. I've tried making changes in the root/current directory and redeploying and that didn't work.

Is there any way I can redeploy changes to the server without having to push it to Github first?