when selecting "save as" and choosing a different filetype extension, gwenview should always keep the name and only suggest extension, example:
Open A.png with gwenview and "save as" jpg, it suggests A.jpg.
After closing gwenview, then opening a second file like B.png, "save as" and choosing jpg switches also name to A.jpg (expected would be B.jpg).
when selecting "save as" and choosing a different filetype extension, gwenview should always keep the name and only suggest extension, example: Open A.png with gwenview and "save as" jpg, it suggests A.jpg. After closing gwenview, then opening a second file like B.png, "save as" and choosing jpg switches also name to A.jpg (expected would be B.jpg).
This may be related to the alphabetical last item found with that extension in saving dialog list: https://www.dropbox.com/s/e0y9os6nhxkpag0/gwenview.mkv?dl=0