Git reset
Some times we made many commit during PR , we want to combine them to one commit

We can see, I create 4 commits totally.

1 backup the branch to remember the commit ID , in case that you did something wrong , you can roll-back.

$ git branch APPSOL-121312_local

2 git branch -v . check the commit ID , the new branch has the same ID (b103a.....)

3 git reset --soft commit ID( this commit ID is the one before your change, please check the first picture, 819f7 is checkout from master branch).

This command make all of your change combine together, and re-build a new commit ID.

4 git status and git add ** and git diff --cached to see the change.

5 git commit -m " massage"

6 git push --force . (you must use --force) , other wise ,it will ask you to pull firstly. that will lead to conflict.