GNU bug report logs - #32237
27.0.50; Function in before-change-functions is called with first argument greater than the second

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#32237: closed (27.0.50; Function in before-change-functions
 is called with first argument greater than the second)
Date: Sat, 21 Jul 2018 18:07:02 +0000

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Your message dated Sat, 21 Jul 2018 21:06:50 +0300
with message-id <83effwxy2t.fsf <at> gnu.org>
and subject line Re: bug#32237: 27.0.50; Function in before-change-functions is called with first argument greater than the second
has caused the debbugs.gnu.org bug report #32237,
regarding 27.0.50; Function in before-change-functions is called with first argument greater than the second
to be marked as done.

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32237: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=32237
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From: Michał Kondraciuk <k.michal <at> zoho.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50; Function in before-change-functions is called with first
 argument greater than the second
Date: Sat, 21 Jul 2018 18:39:26 +0200

If I eveluate the sexp below with M-: in emacs -Q, I get the message
"before change 4 1", which is unexpected.  The second argument should be
greater than the first one, according to the documentation.

(with-current-buffer "*scratch*"
  (erase-buffer)
  (insert "foo")
  (add-hook 'before-change-functions
            (lambda (beg end)
              (message "before change %d %d" beg end))
            nil t)
  (with-temp-buffer
    (insert "foo")
    (let ((temp (current-buffer)))
      (with-current-buffer "*scratch*"
        (replace-buffer-contents temp)))))


Repository revision: 2c242cb1a2956ecfa894d0110b837d4ecc43a69c

[Message part 3 (message/rfc822, inline)]

From: Eli Zaretskii <eliz <at> gnu.org>
To: Michał Kondraciuk <k.michal <at> zoho.com>
Cc: 32237-done <at> debbugs.gnu.org
Subject: Re: bug#32237: 27.0.50;
 Function in before-change-functions is called with first argument
 greater than the second
Date: Sat, 21 Jul 2018 21:06:50 +0300

> From: Michał Kondraciuk <k.michal <at> zoho.com>
> Date: Sat, 21 Jul 2018 18:39:26 +0200
> 
> If I eveluate the sexp below with M-: in emacs -Q, I get the message
> "before change 4 1", which is unexpected.  The second argument should be
> greater than the first one, according to the documentation.

Thanks, fixed on the emacs-26 branch.

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