- submit a diff based on a local commit not in a central repo
- `arc patch` that diff. Should see this prompt:
This diff is against commit e34e04d093bd6ebdcf415d6812f06e825f28eb76, but
the commit is nowhere in the working copy. Try to apply it against the
current working copy state? (4d1efa85e9aca5518c22abb07382a6ac00a0e076)
[Y/n] n
- say no.
`arc` will create some `arcpatch-DNNN`, but it's just an alias for `master`. Since by answering "no" I asked `arc` to nothing, so I wouldn't expect it to create any branch at all (or at least, clean up the branch it made but ended up not using).