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bug#54946: 28.1; next-line skip one line when overlay is added in newlin
From: |
Eli Zaretskii |
Subject: |
bug#54946: 28.1; next-line skip one line when overlay is added in newline |
Date: |
Fri, 15 Apr 2022 12:08:07 +0300 |
> From: Yikai Zhao <yikai@z1k.dev>
> Date: Fri, 15 Apr 2022 10:25:50 +0800
>
> I encountered this issue when I'm editing some code using flycheck-mode
> and evil-mode: after flycheck-mode added an error region at the end of
> the line, press <down> on this line should forward two lines instead of
> one.
>
> Here's the recipe to reproduce it using 'emacs -Q':
>
>
> (with-current-buffer (get-buffer-create "test")
> (setq truncate-lines t
> line-move-visual nil)
> (erase-buffer)
> (insert (make-string 1000 ?x) "\nHELLO\nWORLD\n")
> (let ((ov (make-overlay 1001 1002)))
> (overlay-put ov 'before-string
> (propertize "!" 'display '(left-fringe right-arrow
> error))))
> (beginning-of-buffer)
> (switch-to-buffer (current-buffer)))
>
> After executing the code, press <down>, the cursor would move to line 3;
> but I think the expected behavior is that the cursor would move to line 2.
Thanks. This is a very old bug, and rears its ugly head only of
line-move-visual is disabled.
Should be fixed now on the emacs-28 branch.