GNU bug report logs - #47388
27.1; eldoc-documentation-function is ignore in updated eldoc

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From: Alex Branham <alex.branham <at> gmail.com>
To: 47388 <at> debbugs.gnu.org
Subject: bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc
Date: Thu, 25 Mar 2021 10:05:40 -0400

Hello -

Emacs 27.1 ships with eldoc that defines eldoc-documentation-function as
#'ignore. If users install eglot from ELPA, this pulls in an updated
eldoc that attempts to redefine eldoc-documentation-function. However,
the value does not change (since eldoc-documentation-function is already
bound, defcustom does not update it when called in
eldoc--documentation-strategy-defcustom) so the value is still ignore,
meaning users get:

    There is no ElDoc support in this buffer

since eldoc-documentation-function is #'ignore, regardless of the value
of eldoc-documentation-functions.

Here's the bug report we received with the original issue:
https://github.com/emacs-ess/ESS/issues/1130

Thanks!

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