From mboxrd@z Thu Jan  1 00:00:00 1970
From: Samuel Wales <samologist@gmail.com>
Subject: Re: [bug] [babel] babel corrupts undo history
Date: Fri, 21 Mar 2014 17:11:55 -0700
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To: Bastien <bzg@gnu.org>
Cc: emacs-orgmode@gnu.org, Eric Schulte <schulte.eric@gmail.com>

On 3/21/14, Bastien <bzg@gnu.org> wrote:
> The changes happen in different buffers, there is no reason to
> expect undo to let you undo changes you made from another buffer.

you might be surprised to find that i disagree.  :]

let's concentrate on just one aspect of this.

i believe that most users expect that all changes to a buffer are
reflected in the undo list.

if i am in mybuffer.org, and i make these changes:

  a
  b
  c

and i undo, i expect c b a.

i do NOT expect c a.  that is disconcerting and surprising.

in other words, if b consists of editing a source block, then i
/still/ expect b to be undone, because the contents of that source
block are part of mybuffer.org.

those contents are plain text in mybuffer.org.

perhaps you think of an org document as being a framework inside of
which is foreign material that should be skipped over in undo?  i do
not.  i think of it as plain text that should be undoable.

this is just one aspect of it.