Subject: bug#63232: 28.1; image-converter may fail to display archived images

From: Eli Zaretskii <[email-masked]>
Date: Tue, 02 May 2023 15:14:02 +0300

> From: [email-masked]
> Date: Tue, 02 May 2023 17:10:20 +0900
> 
> 
> If a WEBP image is archived in a ZIP archive,
> when opening the image with archive-mode,
> the subfile buffer of the WEBP image is opened as a multibyte buffer.
> So image-converter fails to display the image.
> Sometimes a wrong image is displayed, otherwise the buffer is not
> recognized as an image.

Emacs 29 support WebP images natively, so there's no need for
image-converter and the problem doesn't happen.

Patches to have this solved with image-converter when WebP is not
supported natively are welcome.