If I installed the libjpeg62-turbo from Debian Buster, the "automatically select filename
extension (.jfif)" would change into "automatically select filename (.jpeg)".
I suspect it is the problem with libjpeg62-turbo.
Package: gwenview
Version: 4:21.08.0-1
Followup-For: Bug #992918
Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
* What led up to the situation?
Maybe a shared QT library bug, not only gwenview is affected
Kolourpaint is also affected.
I noticed that for both Gwenview & Kolourpaint when the format JPEG is
selected on the save menu the file extension is set to .jpe rather than
.jpeg or .jpg. Correcting the extension doesn't resolve the problem
but maybe this is a quirk of the same library.
Krita is not affected.