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bug#22338: 25.0.50; deactivate-mark regression

From: Leo Liu
Subject: bug#22338: 25.0.50; deactivate-mark regression
Date: Thu, 18 Feb 2016 18:14:42 +0800
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.91 (OS X 10.11.3)

On 2016-02-16 15:27 +0800, Leo Liu wrote:
> The bug is still there however I can only reproduce this with a local
> setup involving Erlang + wrangler + emacs (24.5, 25.0.91).

I have found a recipe to partially reproduce the bug.

1. start emacs -Q
2. define a command

   (defun test ()
     (shell-command (format "echo 'test' >> %s" buffer-file-name))
     (revert-buffer nil t t))

3. Open a file, mark an active region and M-x test

You should observe the mark stay active. The active region goes off
after 2 seconds. In emacs 24.5 the mark will go off immediately. With my
local setup the active region stays on. Thus I am calling this recipe

I wonder if it helps understand the issue.


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