GNU bug report logs - #77196
tab-line-mode 's close-button show white rectangle when adjusting height via set-face-attribute

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From: Cecilio Pardo <cpardo <at> imayhem.com>
To: Eli Zaretskii <eliz <at> gnu.org>, Siyuan Chen <chansey97 <at> gmail.com>
Cc: 77196 <at> debbugs.gnu.org
Subject: bug#77196: tab-line-mode 's close-button show white rectangle when adjusting height via set-face-attribute
Date: Thu, 27 Mar 2025 13:35:41 +0100

[Message part 1 (text/plain, inline)]

> On 23/03/2025 7:41, Eli Zaretskii wrote:
>>> Environment
>>>
>>> Emacs 30.1 on Windows 10.
>>
>> I confirm the issue in Emacs 30.  But when I try this in Emacs 31,
>> Emacs crashes.  The backtrace is below.  Cecilio, could you please
>> look at this?

I can reproduce the original bug, but not the crash.  Anyway, it seems 
to happen because some glyph index is outside of the font range, so this 
patch should fix the crash.

[0001-w32-fail-gracefully-when-using-invalid-glyphs-on-dwr.patch (text/plain, attachment)]

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