-Still `E` and `D` are unreachable by `F`. But, you may think "I merged the `feature-branch` into `main`, I should be able to see changes from `E` and `D`." This is true if you start at a commit that has them in its ancestral path. That is `G` and it is known as a **merge commit**, and it is special in that it has two parents. The first is `F` as the last commit of the branch being merged into, and `E` as the last commit of the branch being merged. Now, all the commits in this graph are ancestors of `G`. Thus, if we were to execute `git diff B..G`. We will see changes of all ancestral paths of `G` to `B`. Those paths are `G` -> `F` -> `C` -> `B` and `G`-> `E` -> `D` -> `C` -> `B`. Therefore we will see changes from `G`, `F`, `E`, `D`, and `C`.
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