Usually, after deployment to the production environment a new tag is created in git marking successful production deployment, so later when working on defects it would be much easy to investigate any issues, having the same code as deployed to production. The best way to work with git tags is to create a new branch from the existing tag. It can be done using git checkout
command.
git checkout -b new-branch-name tag-name

Alex Shapovalov is a founder of Yaplex – an IT consulting and software development company, located in Ontario, Canada. Alex provides IT consulting and .NET software development services in Canada and the USA.