🚀 go-pugleaf

Hi.

The buffer-modified marker, '*' in the mode line, seems not to be updated
correctly after undoing the buffer contents in special case.

My Emacs is version 18.55.

[Reproduction]

(1) Create a new buffer (which must not being visiting any file), say 'foo', by

        ^X b foo <RET>

(2) Please notice that the mode line is telling that the buffer is not
    modified at all.

(3) Type some characters, say 'bar', and you will see the mode line chang to
    tell the buffer contents has changed.

(4) Eval the following lisp function to clear the modified flag of that
    buffer.

        (set-buffer-modified-p nil)

(5) The mode line has changed again telling the buffer not modified (this is
    ok).

(6) Try undo command.

(7) I think it is natural for the mode line to change again saying that the
    buffer contents has changed, but it does not.

Is it a feature?



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---
  Shin'ichirou Sugou   shin%sgtp.apple.juice.or.jp@uunet.uu.net