Subject: Re: bug#29198: Cursor fringe arrow indicator not updating.

From: Keith David Bershatsky <[email-masked]>
Date: Tue, 07 Nov 2017 12:48:35 -0800

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.

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DATE:  [11-07-2017 12:37:43] <07 Nov 2017 22:37:43 +0200>
FROM:  Eli Zaretskii <[email-masked]>
> 
> * * *
> 
> Does it update if you type "M-x"?  If it does, you aren't triggering a
> thorough enough redisplay.