I created a new Repository (named repoN) with the existing one (named repoE), simply by copying code from the branch (named B22).
After that, I created a new branch in repoN (named BR01). Now I made some changes in the branch (named BR01) which exist in repoN repository.
I just want to take all those changes into the old repository repoE without loosing history of BR01 into B22.
I am using SourceTree because I'm new in Git and don't know much commands.