How to create the branch from specific commit in different branch

Question

I have made several commits in the master branch and then merged them to dev branch.

I want to create a branch from a specific commit in dev branch, which was first comm

Answer 1

Try

git checkout 
git checkout -b new_branch

The commit should only exist once in your tree, not in two separate branches.

This allows you to check out that specific commit and name it what you will.