bug#11912: 24.1; 'M' in Dired on a symlink does not refresh the display

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
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  > I understand the security-related reasons for changing the `M' command,
  > but I'm wondering whether they are weighty enough to make it more
  > inconvenient for the user to use symlinks in Emacs.

It's not just for the sake of security.  Dired commands generally
operate on the files you see in the Dired buffer.  If what you see in
the dired buffer is a symlink, it is still surprising for a Dired command
to alter the file that the symlink points to.

I wouldn't assume that a user who uses M on a symlink in Dired wants
to alter the file it points to.  I think it is more likely that the
user did not realize it might do that.  Suppose you operate on 10
files and one is a symlink -- you might not even have noticed that one
is as symlink.

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)