bug#7799: 24.0.50; Animated images display strangely

[Chong Yidong]

> When displaying some animated images, they look somewhat broken.
>
> Apparently these are GIF images that have a background images, and the
> rest of the frames are of the "combine" type.  Emacs doesn't seem to
> do the right thing in that case, although other animated GIFs look
> fine.

This was fixed a while ago, so I'm closing the bug.