title: What is the difference between "git push -f" and "git push -ff"?
body: <p>I know what git push -f ( --force) does , but I saw that -ff is used also.
  Initially I thought that is was the abbreviation of --force-with-lease but I didn't found any reference regarding &quot;-ff&quot; in the man.</p>
  <p>Cheers,</p>