GNU bug report logs - #29198
Cursor fringe arrow indicator not updating.

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Message #14 received at 29198 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Keith David Bershatsky <esq <at> lawlist.com>
Cc: 29198 <at> debbugs.gnu.org
Subject: Re: bug#29198: Cursor fringe arrow indicator not updating.
Date: Wed, 08 Nov 2017 05:39:14 +0200

> Date:  Tue, 07 Nov 2017 12:48:35 -0800
> From:  Keith David Bershatsky <esq <at> lawlist.com>
> Cc:  29198 <at> debbugs.gnu.org
> 
> Yes, "M-x" triggers an immediate removal of the old indicator and places the new indicator at the current line position.
> 
> I would recommend adding an exception to the redisplay optimization to check for a change of placement to the built-in overlay fringe arrow indicator.  Since the fringe arrow indicator has been an existing feature of Emacs for quite some time (built-in to xdisp.c), it should (in my opinion) work out of the box without the need for the user to force a redisplay with additional Lisp code.

The other features which display the fringe arrow work correctly, so
evidently there is a way of moving it from Lisp.

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