GDK_PIXBUF_FRAME_REVERT on first frame of animated GIF is not reverted
Ubuntu 20.04, using GNOME Image Viewer 3.36.3. My gdk-pixbuf version is I guess this?
libgdk-pixbuf2.0-0/focal-updates,focal-security,now 2.40.0+dfsg-3ubuntu0.1 amd64
That image comes from http://www.theimage.com/animation/pages/disposal.html, the "Method 3 - trans" image. Every frame has the "Dispose to Previous" method as it's called there, which corresponds to frame action
The first frame should be disposed, but it's not. It's retained.