Gif rendered differently in 2.42.0
Since 2.42.0, this image is rendered differently:
In 2.40.2, it’s a blue 4×4 square (with a red pixel), but in 2.42.0 it’s transparent. The image may be "broken", it’s really small and may not follow the "spec". But even if it’s broken, it used to be blue with gdk-pixbuf and it’s blue everywhere else (Chrome, Firefox, ImageMagick…).