git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git
cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream
git clone <repo-address> | |
git tag -l | |
git checkout <tag-name> | |
git branch -D master | |
git checkout -b master |