gaukur eyða staðnum fremja
git reset --hard origin/<branch_name>
fjarlægja fremja frá staðnum
git reset --soft HEAD~1
eyða fremja
git checkout master
git reset --hard e3f1e37
git push --force origin master
# Then to prove it (it won't print any diff)
git diff master..origin/master
snúa sér óútgefnar fremur
git reset --hard <hash-or-ref>
gaukur henda öllu unpushed fremur
# Remove ALL commits up to commit hash.
# NB: Make sure these commits have not been pushed.
git reset --hard <commit hash number>