The FreeBSD graphics/xv port was updated from 3.10a to 4.2.0 about a month ago. Since then I've noticed that when I edit PNG files the default save file format is PBM/PGM/PPM. Previously the format always seemed to default to the original format of the file that was opened. I tested and that's the case for JPG, GIF, and WEBP.
This seems like a regression to me?