┏┳┓┏━╸┏━┓┏━╸╻┏┓╻┏━╸         ┏━╸┏━╸
              ┃┃┃┣╸ ┣┳┛┃╺┓┃┃┗┫┃╺┓   ╺━╸   ┣╸ ┣╸ 
              ╹ ╹┗━╸╹┗╸┗━┛╹╹ ╹┗━┛         ╹  ╹  



            - _fast-forward_ merge possible if HEAD direct ancestor
            - This allows for a clean, linear history on stable branches
              - helps with git blame, git bisect, git rebase -i

            ┌─────────────────────────────────────────────────────────────┐
            │[spranger@gitWorkshop/stagingArea] git merge more_int_changes│
            │Updating eff74ed..a2c365a                                    │
            │Fast-forward                                                 │
            │ testfile1 | 4 ++--                                          │
            │  1 file changed, 2 insertions(+), 2 deletions(-)            │
            └─────────────────────────────────────────────────────────────┘

            - --ff, --no-ff, --ff-only