keep local `entomologist-data` branch in sync with `origin/entomologist-data`

My git workflow does not use `git pull`, instead i:
1. `git fetch`
2. `git merge` or `git rebase`

When i run `git fetch` to fetch new issues, my local
`entomologist-data` branch does not get automatically synchronized with
`origin/entomologist-data`.

The clumsy workaround is:
1. `git fetch`
2. `git checkout entomologist-data`
3. `git merge origin/entomologist-data`
4. `git checkout ${BRANCH}`