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bug#40975: 28.0.50; Variable gets buffer-local unexpectedly
From: |
Michael Heerdegen |
Subject: |
bug#40975: 28.0.50; Variable gets buffer-local unexpectedly |
Date: |
Thu, 30 Apr 2020 04:26:16 +0200 |
Hello,
here is a reproducer:
#+begin_src emacs-lisp
(defun test ()
(make-local-variable 'my-test-var)
(with-current-buffer (get-buffer-create "Testbuffer")
(setq my-test-var 27)))
#+end_src
If you eval M-: (test) e.g. in emacs -Q and inspect the binding of
`my-test-var' in "Testbuffer" and the other buffers, you'll see that the
variable has become buffer local in "Testbuffer" though it has never
been made local there. This is the bug.
Maybe there is a problem in this case because the `setq' setting is in
the same lexical scope as the `make-local-variable' call?
TIA,
Michael.
In GNU Emacs 28.0.50 (build 57, x86_64-pc-linux-gnu, GTK+ Version 3.24.18,
cairo version 1.16.0)
of 2020-04-29 built on drachen
Repository revision: fe9be663833db1bf99f38c981378255f88ff5d06
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: Debian GNU/Linux bullseye/sid
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