Hi, Since 2.26.0 a simple "git rebase" fails to fast-forward a branch, reporting "error: nothing to do." It started to work again after removing my gitconfig. I've reduced it to the following: git init foo; cd foo git commit --allow-empty -m foo git commit --allow-empty -m bar git checkout -tb foo git reset HEAD~ git -c rebase.abbreviateCommands=true rebase