GNU bug report logs - #79317
31.0.50; Garbled text in corner case

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From: OGAWA Hirofumi <hirofumi <at> mail.parknet.co.jp>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 79317 <at> debbugs.gnu.org
Subject: bug#79317: 31.0.50; Garbled text in corner case
Date: Tue, 26 Aug 2025 23:46:57 +0900

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: OGAWA Hirofumi <hirofumi <at> mail.parknet.co.jp>
>> Date: Tue, 26 Aug 2025 17:03:26 +0900
>> 
>> 
>> In current emacs, in corner case, the displayed text is garbled.
>> Simplified reproducible code is the following,
>> 
>> (with-temp-buffer
>>   (dotimes (_ 3)
>>     (insert "😀😀😀\n"))
>>   (add-to-invisibility-spec '(gnus-sum . t))
>>   (goto-char (point-min))
>>   (let ((starteol (line-end-position)))
>>     (forward-line 2)
>>   (search-backward "\n")
>>   (let ((ol (make-overlay starteol (point) nil t nil)))
>>     (overlay-put ol 'invisible 'gnus-sum)
>>     ;; here
>>     )))
>> 
>> At ";; here" position, first line uses proper font and text, but send
>> line is garbled text.  And if comment out the
>> `add-to-invisibility-spec', no garbled text.
>
> Thanks for a simple and concise test case.  This should be fixed now
> on the master branch.

Thanks. Looks like working for me.
-- 
OGAWA Hirofumi <hirofumi <at> mail.parknet.co.jp>

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