Further detail: Only "Save asW is affected. "Save" is OK, does not
complain about format and retains original file name extension.
- Bug#992918: gwenview: fails to save jpg/jpeg image Fufu Fang
- Bug#992918: gwenview: fails to save jpg/jpeg image Francesco
- Bug#992918: gwenview: fails to save jpg/jpeg image Ian Goddard
- Bug#992918: Ian Goddard
- Bug#992918: Workaround Ian Goddard
