bug#46888: 26.1; org-mode add rmail-after-save-hook to after-save-hook

[marmot-te]

Hi wizards,

The function rmail-after-save-hook is added to after-save-hook in 
org-mode buffers

steps to reproduce :

$ emacs -Q

in scratch buffer :

(org-mode)

after-save-hook
;; => (rmail-after-save-hook)


I found this rather confusing because I cannot find any reference 
in org files to this or vis-versa.





In GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 
3.24.5)
of 2021-01-31, modified by Debian built on x86-csail-01
Windowing system distributor 'The X.Org Foundation', version 
11.0.12004000
System Description:     Debian GNU/Linux 10 (buster)

Recent messages:
Sending...done
Wrote 
/home/user/doom-emacs/.local/cache/undo-tree-hist/.!home!user!.mail!drafts!cur!1614719083.ca12483326dd442b.host:2,DS.~undo-tree~
Buffer has been modified; could not load undo-tree history
Wrote 
/home/user/doom-emacs/.local/cache/undo-tree-hist/.!home!user!.mail!drafts!cur!1614719083.ca12483326dd442b.host:2,DS.~undo-tree~
[mu4e] Message sent
[mu4e] rat's rules
[mu4e] Switched context to marmot-te
(New file)
Mark set [2 times]
Message modified; kill anyway? (y or n) y

Configured using:
'configure --build x86_64-linux-gnu --prefix=/usr
--sharedstatedir=/var/lib --libexecdir=/usr/lib
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --enable-libsystemd --with-pop=yes
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--with-sound=alsa --without-gconf --with-mailutils --build
x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
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--enable-libsystemd
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--with-sound=alsa --without-gconf --with-mailutils --with-x=yes
--with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
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'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'
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Major mode: mu4e:main

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Load-path shadows:
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/home/user/doom-emacs/.local/straight/build-26.1/ivy/elpa

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Memory information:
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