Issue with git pull master is out of sync with origin master

Question

These are the sequence of steps I have performed:

1. committed my changes in branch to local master (commit id dc9afg2k)
2. git fetch ori

Answer 1

An out of sync master can happen when the remote repo has received a forced push (git push --force) which rewrite the history.

If you have done commits of your own on master:

• make a branch (to remember the current master state)
  git branch old_master

• make sure you don't have any private file you need to save.

• follow this guide

That would be:

git fetch origin
git reset --hard origin/master
git clean -f -d

(you can preview the last cleaning steap with a '-n' option: git clean -n -f -d)

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Note that git fetch origin master && git merge origin master could be a git pull origin master: the interest of keeping the two steps separated is to look at the difference between master and origin/master before the merge.
If you don't make that diff, then a git pull is simpler.