$ hg init issue29 $ cd issue29 $ echo a > a $ hg ci -Ama adding a $ echo b > b $ hg ci -Amb adding b $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkdir b $ echo b > b/b $ hg ci -Amc adding b/b created new head $ hg merge