Git Fetch from All Branches

gitconfig.sh

git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*"
git fetch origin
git fetch --all

### if you need stash before
git stash
git pull
git stash pop

### if there are conflicts when stash pop
git checkout stash -- .
git commit

###if you need tracking
git pull  
#There is no tracking information for the current branch.
#Please specify which branch you want to merge with.

git branch --set-upstream-to=origin/<branch> <local_branch>