Re: [PATCH v2 04/13] Teach rebase interactive the mark command

Johannes Schindelin [off-list ref] writes:

So I really hate the idea of introducing yet other marks when we already 
have unique identifiers: the (abbreviated) commit names.

Didn't I give you an example why commit object names are _not_ unique
identifiers already?

I also do not understand why you think 'mark' is ugly.  I _suspect_ that
the machinery to read the TODO insns would need to keep a copy of what it
gave to the end user, compare it with what user edited to make sure the
user did not make nonsense insn sequence out of it, which Jörg's code
doesn't do (yet), and I suspect a simple rule like "you cannot move insns
across 'mark' boundary" would be sufficient for that check.