When you commit to git, then you push and get rejected:

$ git push
 To my_repo:~/my_project.git
  ! [rejected]        dev -> dev (fetch first)
 error: failed to push some refs to 'my_repo:~/my_project.git'
 hint: Updates were rejected because the remote contains work that you do
 hint: not have locally. This is usually caused by another repository pushing
 hint: to the same ref. You may want to first integrate the remote changes
 hint: (e.g., 'git pull ...') before pushing again.
 hint: See the 'Note about fast-forwards' in 'git push --help' for details.

To prevent merging with your local and making your git history filthy, reset head to the latest commit (head~1):

$ git reset HEAD~1
 Unstaged changes after reset:
 M   another_file_here.py
 M   some_file_here.py

Now git pull and the commit again and push. The world is cleaner now.

#git #reset_head #merge #repository