Old commits in git rebase

git_rebase

Let's say I have two branches
- master
- topic

They looks like:

D - E - F - A  - G (master)
     \
      - B - A' - C (topic, where A' is cherry-picked from master)
      
      
If I do
```
$ (topic) git rebase master
```

The tree will become:

D - E - F - A - G (master) - B - C (topic)

Apparently, old commits are "put back".